37 weeks pregnant
Third trimester about 8 months
At 37 weeks pregnant, your baby is about the size of Swiss chard.
Baby this week
About 48cm. The baby is officially full term. All organ systems are ready. The baby is adding fat, finishing lung maturation, and preparing for birth.
Did you know? A baby born at 37 weeks is considered full term — research shows that babies born at 39–40 weeks have slightly better outcomes, so induction before 39 weeks without medical reason is generally avoided.
What she may be feeling
- Pelvic pressure and pain
- Lightning crotch
- Loss of mucus plug possible
- Braxton Hicks or early labor contractions
- Backache
- Nesting
- Fatigue
- Difficulty walking comfortably
Tips for her this week
- Full term — your baby could arrive any day now and that is completely healthy.
- You may lose your mucus plug (a glob of mucus, possibly tinged with blood) — labor may follow within days or weeks.
- Cervical changes (dilation and effacement) will be checked at appointments from here.
- You've made it. What you've done is remarkable.
For partners
- The baby is officially full term — it could arrive any day now. Stay close to home.
- Know your role in every labor scenario: fast labor, slow labor, C-section.
- Keep your phone charged, location known, and respond to messages quickly.
- Tell her she's done something extraordinary. Mean it.
Partner to-do list
- Stay close to home and be reachable
- Know what to do in every labor scenario including emergency delivery
- Keep car fueled and hospital bag by the door
- Tell her how proud you are of her — genuinely and specifically
This week together
- Keep provider's number easy to access
- Know exactly when to call and when to go to hospital
- Confirm baby's room and supplies are ready
- Rest as much as possible — labor is coming
When to call your doctor or midwife
Contact your care provider right away, or call emergency services, if she has:
- Regular contractions 5 minutes apart for 1 hour — call your provider
- Water breaking — go to hospital
- Heavy bleeding — go to hospital
- Decreased fetal movement
- Signs of preeclampsia
Trusted guidance: NHS: Pregnancy · NHS: Pregnancy complications · ACOG: Pregnancy · Pregnancy Info: Your pregnancy
Common questions
How big is the baby at 37 weeks?
At 37 weeks pregnant, your baby is about the size of Swiss chard. About 48cm.
How many months is 37 weeks pregnant?
37 weeks pregnant is about 8 months, in the third trimester.
What can partners do at 37 weeks?
The baby is officially full term — it could arrive any day now. Stay close to home. Know your role in every labor scenario: fast labor, slow labor, C-section.