Week 37 of Pregnancy
Third trimester
For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
Baby is
about the size of a winter melon
19.1 inches · 6.3 pounds
Baby this week
- •Lungs are nearly fully mature and ready for breathing outside the womb
- •Brain continues rapid development with increased neural connections
- •Baby is in position for labor (head down for most pregnancies)
- •Bones are mostly hardened, though skull remains slightly flexible for birth
- •Fine lanugo hair is shedding; vernix coating is thickening
You this week
- •Increased vaginal discharge and possible mucus plug loss (bloody show)
- •Braxton Hicks contractions becoming more frequent and intense
- •Pressure and heaviness in the pelvis and lower back
- •Difficulty sleeping due to discomfort and anticipation
- •Possible worsening of hemorrhoids and varicose veins
- •Swelling in feet and ankles from fluid retention
- •Emotional intensity—excitement mixed with anxiety or impatience
This week's tips
- •Attend your final prenatal appointments and discuss signs of labor to watch for
- •Practice your birth plan and pain management techniques with your partner
- •Rest as much as possible; nap when you can and prioritize sleep over activity
- •Stay hydrated and eat small, frequent meals to maintain energy
- •Do gentle movement like walking or prenatal yoga to encourage baby into position
- •Prepare your hospital bag with essentials and keep it accessible
- •Connect with your support team and confirm final labor plans
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're officially in the final stretch. Labor could begin anytime in the next few weeks, so trust your instincts and don't hesitate to contact your healthcare provider if something feels off. It's completely normal to feel both ready and nervous—you're about to meet your baby.
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For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
This content is for informational purposes only and is not medical advice. Every pregnancy and baby is different. Always consult your doctor, midwife, or pediatrician for guidance specific to your situation.
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