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Pregnancy Week 37: Symptoms, Baby Size & What to Expect

PregnancyBy Wermom Medical TeamUpdated March 20268 min read
Pregnancy Week 37: Symptoms, Baby Size & What to Expect
Quick Answer: At week 37 of pregnancy, your baby is about the size of a winter melon and weighs approximately ~2.9kg. Here's everything happening this week — from your baby's development to the symptoms you might experience, plus expert tips to help you through.

Your Baby at Week 37

Your baby measures roughly the size of a winter melon (19.1 in) and weighs about ~2.9kg. The major developments this week: Full term! Practice breathing well-established, firm grasp, accumulating fat for temperature regulation, all systems mature.

Your baby's firm grasp is so strong that they could hold onto your finger — this grasp reflex is one of the first primitive reflexes present at birth.

Pregnancy Week 37: Symptoms, Baby Size & What to Expect guide

Symptoms at Week 37

Common symptoms during week 37 of pregnancy include: Mucus plug may come loose, increased pelvic pressure, nesting instinct strong, Braxton Hicks frequent, possible bloody show.

Remember that every pregnancy is unique — you may experience all, some, or none of these symptoms. If anything feels unusual or concerning, don't hesitate to contact your healthcare provider.

What to Do This Week

You're now considered full term! Baby could arrive any day and would be perfectly healthy. Watch for signs of labor: regular contractions that increase in frequency/intensity, water breaking, bloody show, or persistent lower back pain.

Nutrition & Wellness

Staying well-nourished is crucial at every stage of pregnancy. Focus on folate-rich foods (leafy greens, lentils, fortified cereals), iron (lean meats, beans, spinach), calcium (dairy, fortified plant milks), and omega-3 fatty acids (salmon, walnuts, flaxseed). Stay hydrated with at least 8-10 glasses of water daily.

Frequently Asked Questions

Is it normal to feel [symptom] at week 37?

Yes, most symptoms at week 37 are completely normal. Common experiences include Mucus plug may come loose and increased pelvic pressure. However, contact your doctor if you experience severe pain, heavy bleeding, or persistent vomiting that prevents you from keeping fluids down.

How big is my baby at 37 weeks?

At week 37, your baby is approximately the size of a winter melon, weighing about ~2.9kg. Full term! Practice breathing well-established.

What should I avoid at week 37 of pregnancy?

Continue avoiding alcohol, raw/undercooked meats and fish, unpasteurized dairy, high-mercury fish (shark, swordfish, king mackerel), deli meats unless heated until steaming, and limit caffeine to under 200mg per day.

Key Takeaways

  • At week 37, your baby is the size of a winter melon (~2.9kg)
  • Key development: Full term! Practice breathing well-established
  • Common symptoms: Mucus plug may come loose, increased pelvic pressure, nesting instinct strong
  • You're now considered full term! Baby could arrive any day and would be perfectly healthy.
  • Track your symptoms and baby's movements with Wermom for personalized insights

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