Pregnancy Symptom

Morning Sickness

Morning sickness is the nausea and vomiting that occurs during pregnancy, most commonly in the first trimester.

Medically reviewedUpdated 2024-03-20Trimester 1, Trimester 2

What "Moderate" Means Here

A "moderate" rating means this symptom is common but is more likely to benefit from your provider’s input — either to confirm it’s within the normal range for you, to rule out an underlying cause, or to get a treatment recommendation beyond basic home remedies. It doesn’t necessarily mean something is wrong; many moderate symptoms are simply worth mentioning at your next appointment so your provider has full visibility into how your pregnancy is progressing. If it escalates in intensity or frequency, that’s a good reason to reach out sooner rather than waiting for your next scheduled visit. Providers generally appreciate patients flagging moderate symptoms proactively rather than waiting to see if they resolve, since the same symptom can mean different things depending on your individual health history, prior pregnancies, and how far along you are.

Timing During Pregnancy

This symptom is most often reported earlier in pregnancy. Early-pregnancy symptoms are frequently tied to the rapid hormonal shifts (especially rising hCG and progesterone) that happen in the first trimester, and many ease up as the body adjusts in the second trimester. If it continues well past the first trimester or intensifies, it’s worth mentioning at a prenatal visit rather than assuming it will resolve on its own. Because the first trimester is also when the risk of miscarriage is highest and many people are still settling into prenatal care, it’s a reasonable time to have a lower threshold for asking your provider whether a given symptom is expected.

Common Causes

  • Rapid rise in pregnancy hormones (hCG and estrogen)
  • Enhanced sense of smell and sensitivity to certain odors
  • Sensitive stomach or gastrointestinal changes
  • Stress or fatigue

Remedies That May Help

Ginger

Ginger tea, candies, or capsules can help soothe the stomach.

Small, Frequent Meals

Keeping your stomach from being empty can reduce nausea.

Vitamin B6

Often recommended by doctors as a first-line supplement for nausea.

Acupressure Bands

Wristbands that apply pressure to the P6 point.

Hydration

Sipping water or electrolyte drinks throughout the day.

When to Call Your Doctor

  • Inability to keep any fluids down for 24 hours
  • Signs of dehydration (dark urine, dizziness)
  • Weight loss of 5 pounds or more
  • Vomiting blood or severe abdominal pain

Warning Signs That Always Warrant Immediate Care

Regardless of the specific symptom you’re looking up, general ACOG and CDC guidance is to seek immediate medical attention — call your provider’s urgent line, go to labor and delivery, or go to the ER — if you experience any of the following:

  • Vaginal bleeding that is heavy, bright red, or accompanied by pain
  • Severe or persistent abdominal or pelvic pain
  • A severe headache that doesn’t improve with rest, water, or over-the-counter pain relief
  • Sudden swelling of the face, hands, or feet, especially paired with a headache or vision changes
  • Vision changes such as blurring, seeing spots, or temporary vision loss
  • A noticeable decrease in your baby’s movement compared to their usual pattern
  • Fever of 100.4°F (38°C) or higher
  • Fluid leaking or gushing from the vagina
  • Regular, painful contractions before 37 weeks
  • Difficulty breathing, chest pain, or a rapid heartbeat
  • Persistent vomiting that keeps you from keeping down fluids
  • Severe itching, especially on the palms and soles, which can sometimes indicate a liver-related condition

This list reflects general warning signs recognized across pregnancy, not just for this specific symptom — when in doubt, it’s always appropriate to call your provider and describe what you’re experiencing rather than waiting to see if it resolves.

General Tips for Managing Pregnancy Symptoms

Alongside any symptom-specific remedies above, a handful of general habits tend to help with a wide range of pregnancy symptoms and are worth keeping in mind throughout your pregnancy:

  • Stay consistently hydrated — many pregnancy symptoms, from headaches to fatigue to constipation, are worsened by even mild dehydration.
  • Keep taking your prenatal vitamin as directed, since nutrient gaps (particularly iron, calcium, and vitamin D) can compound certain symptoms.
  • Prioritize rest and sleep where you can, including resting on your side in later pregnancy, which supports circulation to the uterus.
  • Stay gently active if your provider has cleared you for exercise — light movement like walking or prenatal yoga can ease many common complaints.
  • Eat smaller, more frequent meals rather than three large ones, which can help with digestive symptoms and blood sugar swings.
  • Keep a running list of questions between appointments so nothing gets forgotten when you do see your provider.

None of these general habits replace medical evaluation for a specific concerning symptom, but they’re a reasonable baseline to maintain throughout pregnancy regardless of what you’re experiencing.

Frequently Asked Questions

When does morning sickness usually start?

It typically starts around week 6 and peaks around week 9.

Can morning sickness happen at night?

Yes, despite the name, it can occur at any time of day or night.

Will morning sickness harm my baby?

Mild to moderate nausea doesn't harm the baby, as long as you stay hydrated.

What if I don't have morning sickness?

About 20-30% of women don't experience it; it's perfectly normal.

Does it mean I'm having a girl?

There is no scientific proof that the severity of nausea predicts the baby's gender.

How do I know if a pregnancy symptom needs medical attention?

As a general rule, contact your provider if a symptom is severe, sudden, rapidly worsening, or paired with other concerning symptoms like fever, vision changes, or reduced fetal movement — even if it doesn’t appear on a specific warning-signs list. You know your body best, and providers consistently say they’d rather field a call about something that turns out to be normal than have a patient wait through something that wasn’t.

Should I track this symptom before my next appointment?

It’s a good habit to jot down when a symptom started, how often it occurs, roughly how intense it feels, and anything that seems to make it better or worse. This kind of record is genuinely useful to your provider — it turns a vague "I’ve been having some discomfort" into something they can actually assess for patterns, and it can help you notice on your own whether a symptom is improving, staying steady, or getting worse over time.

Is it normal for pregnancy symptoms to come and go?

Yes — many pregnancy symptoms fluctuate day to day or even hour to hour, influenced by things like hydration, activity level, meal timing, and simple positional changes. Fluctuation on its own usually isn’t a red flag. What’s more worth flagging to your provider is a symptom that is steadily trending worse over days or weeks, or one that suddenly becomes much more intense than your usual pattern.

Medical disclaimer: This content is for education only and is not a substitute for medical advice. Contact your healthcare provider for symptoms that are severe, persistent, or worrying.