Pregnancy Trimesters Chart: Weeks, Symptoms and Noteworthy Issues


Pregnancy is one of the most delicate yet beautiful stages of a woman’s life. As an expectant mother, your body will undergo a couple of changes right from conception as your baby grows. Typically, a full-term pregnancy is 40 weeks long though it may also be 37-42 weeks long. A full-term pregnancy is divided into three trimesters each lasting 12-14 weeks.

While expectant, you will experience some physiological and hormonal changes that are different for each trimester. It is crucial to know the various effects of pregnancy on your body so that you prepare yourself beforehand besides understanding the issues that should concern you.

Stages of Pregnancy-The First TrimesterStages of Pregnancy-The First Trimester

The first 0 to 13 weeks of pregnancy marks the first trimester. So when do you start counting the pregnancy date? Well, this is not a no-brainer, pregnancy date counting begins with the first day of your last regular menstrual flow. However, on the first week, technically you are not pregnant as you conceive on week two.

For the first trimester, your baby bump will not entirely be evident although your body is taking on tremendous changes to accommodate the little human.

Week 1

As mentioned, for the first week, conception is yet to occur. But you can start focusing on a healthy lifestyle.

Some Issues to Consider

♥  Get a prescription for a daily dosage of prenatal vitamins with a minimum of 400 mg of folic acid

♥  Refrain from unhealthy habits such as alcohol and smoking

Folic acid is a great source of Vitamin B which protects the baby from neural-tube defects like spina bifida.

Week 2

At this time the ovary is set to release an ovum, so ovulation occurs. A day or two before your ovulation date is the best time to engage in sex as the probability of conception is higher.

Some Issues to Consider

♥  Start or keep exercising

♥  Find a midwife or an obstetrician, it is advisable to book an obstetrician this early in case of anything.

Week 3

The chances are that you are pregnant. Fertilization takes place in the fallopian tube. Although it is too early to predict things, you are now in the very early stages of your child’s development. The fusion of cells has determined your baby’s sex, eye color, hair color among other character traits.

Some Issues to Consider

♥  Do not self-medicate without consulting with a doctor

♥  Go for a flu shot

♥  Take plenty of water, fruits, and vegetables.

♥  Cut back on taking vitamins or Retina-A or Accutane which come from vitamins.

Week 4

At this stage, the pregnancy test comes back positive, with no doubt whatsoever. Your baby is the size of a little raspberry seed. The mass of cells has divided into an embryo and placenta, the neural tube has developed, and the formation of the amniotic sac and fluid are underway. The amniotic sac and fluid is the baby’s protective cushioning against harm.


♥  Episodes of light cramps

♥  Bloating (as a result of high progesterone levels)

♥  Bleeding

♥  Mood swings (caused by changing hormonal levels)

♥  Nauseous feelings

Some Issues to Consider

♥  Get bras that offer extra support for instances when the breasts enlarge

♥  Stay away from chemical substances and smokers

Week 5

During this week, vital organs of your baby start forming. Besides the embryo being as tiny as a grain of sand, the baby has a heartbeat, the arms and legs start budding. Some expectant women say they experience the ‘pregnancy brain.’ Hold your thoughts; the pregnancy brain is nothing serious, it is a kind of amnesia or ‘momnesia’ when you experience bouts of forgetfulness.


♥  Breasts can be sore

♥  Vomiting

♥  Fatigue

♥  Frequent urination caused by enlarged kidneys

Some issues to consider

♥  Keep a list of things to do to beat forgetfulness

♥  Visit your OB or midwife for a check-up

Week 6

Your baby resembles a sweet pea and is now growing at breakneck speed. Their face starts developing, and their blood circulation is increasingly established. The baby’s neural tube along their back starts closing. Meanwhile, the baby develops some fundamental features.


♥  Fatigue

♥  Nausea (Severe morning sickness)

♥  Mood swings

♥  Sore breasts

Some Issues to Consider

♥  As long as you avoid drugs and behaviors that are detrimental to the health, a miscarriage is avoidable

♥  It’s now the time to plan when to announce your pregnancy to family, friends and even your employee.

Week 7

At this point, the baby’s face and head become more pronounced, and they are equal in size with a blueberry. Their hearts are significantly sophisticated, permanent kidneys form, and the formation of the joints of their arm and leg joints commences.


♥  Nausea

♥  Frequently peeing

♥  Salivation

♥  Appearance of acne

♥  Cravings of certain foods

Some Issues to Consider

♥  To control nausea, eat in several little portions of food the entire day, especially meals with ginger and citrus, Stay away from intense odors, and use a pressure point or acupressure wristbands.

♥  Don’t give in too much to snacking but don’t mind succumbing to occasional cravings.

Week 8Pregnancy Trimesters Chart

On the 8th week, the baby is resembles a raspberry in size, they can move their arms and legs, the fingers and toes become distinct, and their taste buds are now developing.


Sore breasts which are now large and heavy

♥  Exhaustion and nausea

♥  Pregnancy Cramps

♥  Stomach complaints such as bloating, indigestion, heartburn, and constipation

♥  Higher sense of smell

♥  Strange dreams

Some Issues to Consider

♥  Make plans for baby care as this is an ideal time.

♥  Schedule an appointment with your doctor to check the baby’s heartbeat and for them to tell you your due date

Week 9

Your baby is now growing stronger as their arms develop and they develop more facial features than before. Their heartbeat is easily heard so a fetal Doppler can detect it. During this time, your enlarging uterus exerts some pressure on your bladder causing urine leakage in small amounts.


♥  Frequent urination

♥  Mood swings

♥  Exhaustion

♥  Morning sickness or for the entire day

♥  Weight gain

♥  Nasal congestion

Some Issues to Consider

♥  Do Kegels, these are exercises that target the pelvic floor by squeezing and relaxing the muscles which help strengthen the pelvic floor, and it controls incontinence. It is the best way to prepare for the due date.

Week 10

Here the baby’s size is that of a prune. Their vital organs and arm joints are now fully-functioning, their hair and fingernails are now visible, and this is the time when you will feel your baby kick. You may notice that the sickening symptoms of pregnancy start becoming less but anxiety concerning the health status of the baby heightens.


♥  Sore breasts

♥  Overwhelming emotions/odd dreams

♥  Fatigue/nausea

♥  Appearance of veins

♥  Pains in the abdomen

Some Issues to Consider

♥  Make an appointment with the doctor to consult on genetic screening or some tests that detect congenital disabilities which they usually do from the 10th and 12th weeks. Your OB may also counsel you.

Week 11

Your baby’s size is that of lime. Your food cravings or aversions skyrocket and you are bound to indulge in anything including non-foods. The cravings for non-foods is known as pica, and it can be a sign of insufficient nutrients in your body. Mostly, your baby’s skin is still see-through, their tooth buds, nails and hair follicles are forming, and they have regular fingers and toes that are not webbed.


♥  Mood swings

♥  Exhaustion/nausea

♥  Leg pains

♥  More vaginal discharge

Some Issues to Consider

♥  Consult your OB if you experience pica

♥  Visit the doctor for the nuchal translucency test that checks for any chromosomal abnormalities including downs syndrome. This test takes place from the 11-14th weeks.

Week 12

Your baby bump is now big enough and noticeable because the uterus is enlarging beyond the protective pelvic bones. The baby has fully-formed its most critical systems, their brain development is rapid, their reflexes start forming, and they can move their toes and fingers voluntarily.


♥  Reduced fatigue and nausea

♥  Increased vaginal discharge

♥  Headaches

♥  Stress

♥  Dehydration

♥  Low blood sugar levels

Some Issues to Consider

♥  From this stage, avoid strenuous activities that may cause a fall or abdominal injury

♥  Do not do any exercise that involves lying on your back as the growing fetus can exert too much pressure on a significant vein thus cutting blood supply to the uterus.

Week 13

Your baby is now a peach’s size. Their head takes a 1/3 of the body size. The formation of their teeth and vocal cords begins, and they have fingerprints. You can now ease off a bit as week 13 is the end of the first trimester. Start making plans for adding more pounds in the next 14 weeks, now is the time to ‘eat for two’ but not too much.


♥  Appearance of veins

♥  Reduced fatigue/nausea

♥  Heightened sex drive

Some Issues to Consider

♥  Focus on consuming enough calories daily in support of your growing baby

♥  Buy some maternity wear you will find a variety of those at the stores even those with belly bumps

Some Warning Symptoms You Should Pay Attention to in the First Trimester

These are the unusual symptoms that should concern you. If you have any of the symptoms below, you might be at risk of a miscarriage, so consult with a doctor immediately. The signs are;

♥  Unquenchable thirst of water

♥  Severe abdominal pains

♥  Vision problems or dizziness

♥  Rapid weight gain or lack of it

♥  High fevers over 101F with muscle pains and chills

♥  Excessive vaginal bleeding

♥  Pain while peeing

The Second Trimester of PregnancyThe Second Trimester of Pregnancy

This is the 14th to the 27th week of pregnancy. According to most women, the second trimester is when they are the most comfortable. The pregnancy symptoms that were full-force in the first trimester significantly ease off. You may feel more energetic during the day and enjoy restful sleep at night. Your abdomen is now bulging out so your clothes will not be an excellent fit.

Put on free maternity clothes that are comfy and less restrictive and share the good news with your loved ones.

Week 14

For the 14th week, your appetite increases exceedingly, the symptoms such as aches and pains that once plagued you are now mild. Also, your hair is more nourished as it gets thicker and shinier.

The baby is lemon sized; they can move their toes and thumbs voluntarily, their body organs such as the liver functions entirely, and a thin layer of hair (lanugo) forms for warmth.

Week 15

As the mother, you may experience heartburns and increased sex drive. Due to increased blood flow, you can be subject to icky symptoms such as nosebleeds, swollen gums, and nasal congestion.

You baby’s size is that of a navel orange, they wiggle occasionally, the can hiccup, and their joints and limbs are fully-functional.

Week 16

You will experience backaches, rapid hair and nail growth, dry itching eyes, episodes of forgetfulness, and a skin glow. Your baby is now an avocado size. Their heartbeat is stronger than before, their taste buds develop quickly, and the auditory system is functional.

Week 17

Brace yourself as your body starts discharging lots of fluid at this stage whether it is vaginal discharge, sweat, and mucus. You will also have odd dreams, an itchy belly and breasts, and a quick weight gain.

Your baby is onion-sized. Their umbilical cord is more rigid and thicker, and their bones start forming out of the cartilage.

Week 18

Your hands and feet start swelling, you may have back and leg cramps, nosebleeds, dehydration, and visible veins. Sleeping may cease being restful and become problematic.

The baby is now the size of a sweet potato, and they can swallow, yawn, suck, and yawn. Their movements are distinct especially when they kick.

Week 19-2019 and 20 week pregnancy

Leg cramps, abdominal pains, and drowsiness mark the 19th week. Your baby is now mango-sized. Their skin has a covering of vernix caseosa which is a greasy white protective layer on the skin. The baby’s five senses nerve cells start developing.

The fetal movements are very noticeable, and it is said to feel like flutters in the tummy, a situation known as quickening. Other pregnancy symptoms are shortness of breath, increased libido, swelling feet and vaginal discharge

Week 21-22

Your baby is the size of a pomegranate in the 21st week and grows to the size of a papaya in the 22nd week. The baby’s bone marrow starts producing blood cells, and their taste buds start forming.

If you are carrying a girl, she will have developed a minimum of 6 million eggs in her womb. Meanwhile, the baby’s digestive system releases meconium which is a black compound you find when the baby poops for the first time.

Most mothers tend to have Braxton-Hicks contractions during this period. It is a pain-free contraction of the uterus or the abdomen. It is said to be a way in which the uterus is preparing itself for labor and delivery. These kind of contractions are common and should not be mistaken for labor contractions. However, if you experience these contractions often with extreme cramps, then you need to check with your doctor.

Week 23-24

As the 23rd week commences the baby is now alert, they can hear any sounds from the outside world so you can speak or talk to them. The baby has already formed nipples at this point, and their face has all the features. Moving forward to the 24th week, the skin of the child is now less transparent, and it has a pinkish color because they have newly formed capillaries.

In this period, expect to have leg cramps, Braxton Hicks contractions, swollen ankles, and stretch marks.

Week 25-26

The baby’s size is that of cauliflower at the 25th week and later the size of a lettuce head in the 26th week, they are more hairy and fat at this stage. Also, the baby balances well in the tummy, they can breathe from the amniotic fluid, and they acquire antibodies from the mother’s body to prep their immune system for the outer world.

The symptoms you will have are sleeping problems, aches including headaches due to a minor increase in blood pressure, hemorrhoids and bloating.

Week 27

Now the baby’s size is that of a rutabaga, the lungs have quickly formed, so the baby breathes regularly. The brain is also very active at this time. You will have leg and backaches, hemorrhoids, and constipation. You may experience snissing which is accidental peeing whenever you sneeze, and your hair, skin, and nails will undergo some changes.

The Third Trimester of Pregnancy

the Third Trimester of Pregnancy

It is the period that lasts from the 28th week of pregnancy to your due date. Throughout the third trimester, appointments with your doctor will be more frequent. Your OB will:

♥  Perform urine tests to check for any proteins

♥  Detect and listen to your baby’s heartbeat

♥  check for swellings on your hands and legs

♥  do a blood pressure check

♥  measure your uterus approximate length

Your doctor will also examine how your baby is positioned and continuously monitor your cervix to give an account of your body’s preparedness in the days leading up to your delivery.

Some Issues to Consider

♥  You will be restricted from traveling for now until birth because you may go into labor anytime. Therefore, it is advisable that your midwife is easily reachable from wherever you are. Both airlines and cruise ships have travel restrictions on mothers at this stage

♥  Take childbirth classes to be equipped with critical knowledge about childbirth and labor. Such training prepares you mentally for your due date, and you can raise any concerns that you have which will be answered accordingly by the skilled childbirth instructor

Week 28

Your baby size is that of an eggplant, and they are fatter with fully-formed lungs. You may have sleeping difficulties, shortness of breath, aches, leaky breasts, and Braxton Hicks contractions.

Week 29-30

Your baby is now the size of an acorn squash with glowing skin due to white fat deposits underneath. The baby’s movements are distinct. Some of the symptoms in this week are general discomfort even when sleeping, breathe shortness, varicose veins which are red or blue veins that appear on the upper layer of the skin, constipation. Also, Hemorrhoids (swelling of veins in the rectum) which causes much discomfort and it may cause bleeding can continue.

Week 31-32

By the end of the 32nd week, your baby is now the size of the squash, for some women the fetus moves into the head down position. There is a continuation of symptoms such as Braxton Hicks contractions, vaginal discharge, bigger breasts that are leaky, and darkened nipples

Week 33-34

At the 34th week, your baby’s size is that of a butternut squash. Their bones are more rigid, their eyes stay open when they are awake, and their brain undergoes significant development. The baby also pees like a pint on a daily basis.

Some of the previous symptoms continue, and your metabolism rate escalates such that you feel like you are burning, your vision becomes blurry, and the pressure at your pelvic area caused by the fetus is too much that you sense it.

Week 35-36

At the 36th week, you are nine months pregnant, and the pressure of the fetus becomes more strenuous on the body. The fetus’s size is that of a honeydew. At this point, if you are expecting a boy, their testes are visible.

The usual pregnancy symptoms are still present at week nine such as breathing difficulties, heartburn, aches, and pains. Some fetuses drop closer to the cervix relieving the mothers of constipation and indigestion.

Week 37-38

When the 38th week is over, the baby is the size of a pumpkin. The circumference of the head of the fetus and that of the abdomen are similar, and the fetus’s grasp is firm. The baby also sheds the vernix caseosa.

Other symptoms continue, and you may experience spotting, a mucus discharge that has a little blood which is a sign that you are about to go into labor.

Week 39-40Pregnancy Trimesters

You will most likely deliver by the end of the 40th week. The primary determining factor of the symptoms now depends on whether the baby moves down to the cervix. However, when the fetus drops, you will pee frequently and find it difficult to hold urine.

Your cervix opens up by dilating, or it may start the minute labor begins. Dilation can be accompanied by unbearable pains in the vagina. Once you deliver your newborn, the placenta among other tissues is released from your body. It is known as childbirth.


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