13 Weeks Pregnant: Your Pregnancy Guide Week by Week (2018)


Its week thirteen and you’ve officially entered your second trimester of pregnancy! With the worst of symptoms such as fatigue and morning sickness well behind you, expect to feel increasingly more secure and confident as you navigate through the next stages of your pregnancy.

As your feelings of malaise being to disappear into a distant memory, you will be feeling a vast improvement in overall well-being. The upswing in good feelings is largely due to your placenta taking on an expanded role of managing pregnancy hormones, thus resulting in the dissipation of nausea, morning sickness, and many other pregnancy-related symptoms.

Growing in leaps and bounds, your baby is currently the size of a lemon and is in the midst of fully entertaining itself through exciting newly-procured abilities to turn their head, kick their legs, yawn, and even hiccup! Just as exciting are the formation of your baby’s vocal cords, unique set of fingerprints, and its teeth.

Now a third of the way through your pregnancy, you and your baby are making major13 week pregnant headway to the finish line. With your increased sense of confidence and well-being, your pregnancy will start to become a far more manageable experience that will bring about immense joy, excitement, and countless thrills by the week.

Read on below to learn more about the thirteenth week of pregnancy and all of its many riveting aspects!

Your Physical and Emotional Health: 13 Weeks Pregnant Symptoms

Ligament pain The ligaments supporting your uterus may begin to pull and stretch to the point of significant pain.

Completely normal and very common, this pain can range from mild to severe and does not require medical attention.

However, if the pain is accompanied by signs of leaking blood and loss of fluids, you should make an immediate appointment with your healthcare provider to address the issue as this may indicate signs of a miscarriage.

Bladder and uterus For the first time, the pressure against your bladder begins to alleviate, as your uterus grows up and outwards from your pelvis. Resulting in a noticeably thickened waistline, you may experience physical symptoms such as mild to severe abdominal pains
Heartburn May still be present during week thirteen. Resulting from shifting progesterone levels, heartburn may be experienced in the chest, along with the throat.
Constipation and bloating Progesterone and other pregnancy hormones can often wreak havoc on your digestive system, resulting in constipation and bloating symptoms.
Increased sex drive Due to hormonal fluctuations, women in their thirteenth week of pregnancy may experience a significantly increased sex drive.

Expect to experience slight spotting with sexual activity due to a super-sensitive cervix.

Heavy bleeding during and after sex is highly abnormal and should be immediately addressed with your doctor.

Increased energy Expect to feel intermittent surges in energy and stamina as you enter this new phase of pregnancy.
Visible veins Due to heightened blood flow, you may see bluish-green veins/streaks under your skin
Food cravings Triggered by the many hormonal changes your body is undergoing, unusual cravings may suddenly become more pronounced.

Cravings may also be a result of vastly fluctuating blood sugar levels

Taste and smell may be significantly affected during and outside of food craving episodes.

Your breasts Your breasts are still undergoing growth and will more than likely be very sensitive due to the production of colostrum and widening of mammary ducts as they prepare for lactation.
Overall physical appearance From here on out, you should fully expect to look increasingly more pregnant as your belly swells, and you experience marked weight gain

Your Baby’s Health and Status: 13 Weeks Pregnant Baby

Your baby’s sex-specific developments: By this time, your baby will have developed a clitoris or penis, both of which will undergo their development inside their body Your baby’s essential stats: Coming in at about three inches in length and weighing almost an ounce, your baby is now about the size of a lemon will continue to grow at a fast rate in the coming weeks.
Your baby’s movements: Although you probably won’t feel significant movement inside you, rest assured your baby is dancing and wiggling around in jerky primitive motions that are slowly evolving into slower, steadier, and increasingly purposeful movements Your baby and the placenta: While your baby’s bones continue to grow to a strong and durable point, the placenta is hard at work providing your fetus with a multitude of elements such as essential nutrients, minerals, vitamins, oxygen, fats, and proteins.
Your baby’s pancreas: Beginning to produce insulin essential to the regulation of sugar levels, your baby’s pancreas inevitably starts to take on a more prominent role. Your baby’s latest major milestone: In week thirteen, your baby will have had a fully functional intestinal system in place!

Tips, Tricks, and Knowledge at 13 Weeks Pregnant

  • Inevitably, you will begin to see the appearance of stretch marks across your body, 13 week pregnantparticularly around the breasts, buttocks, hips, and abdominal area. Impossible to avoid, take the emergence of stretch marks in stride and view them as a veritable badge of honor
  • If you are wanting to apply any creams or lotions to mitigate the appearance of your stretch marks, consult with your healthcare provider first
  • Sticking to a healthy, well-balanced diet will limit your weight gain and reduce the chances of getting stretch marks
  • Use your newly increased level of energy and stamina to your advantage and start crossing things off your to-do list while also making a concerted effort to plan for the future
  • You will be happy to know that the “worst” of it is over – and the remainder of your pregnancy term will be far more manageable compared to earlier months. As you progress through the coming weeks and months of your term, ensure that you stay committed to sticking to healthy dietary and exercise habits

To-Do List and Reminders at 13 Weeks Pregnant

  • Incorporate calcium-rich foods into your diet to help support the critical formation of your baby’s rapidly growing bones. Eating calcium-rich foods such as yogurt, milk, and cheese are great ways to get this important nutrient.
  • Start exercising your pelvic floor muscles to obtain the necessary strength to endure the strain of giving birth


Colostrum: Chock full of important nutrients, colostrum is an essential fluid that functions to feed your baby for the critically important days after birth while your milk production gears up to begin to take over the feeding process

Pelvic floor exercises: Functioning to strengthen and tone your pelvic floor muscles, 13 Weeks Pregnantthese exercises are critically important to building the endurance and fortitude needed to undergo the laborious birthing process. Easy to do, pelvic floor exercises merely require sitting in a comfortable place and squeezing the muscles ten to twenty times in a row, making sure to hold each squeeze for a few seconds

Cool Things to Know

  • At thirteen weeks, you are three months pregnant and now in your second trimester, which is widely regarded as the period of pregnancy with the least amount of symptoms and a much appreciated surge in energy and stamina
  • If you are having a little baby girl, she will at this point in your term have more than two million eggs in her ovaries!
  • Your baby’s body is finally starting to now catch up with its head. Previously disproportionately oversized, your baby’s head now makes up just a third of their body size instead of half.

Ready to find out what’s next in your pregnancy journey?

Click here for all the information you need to know about week 14 in pregnancy!


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