Baby development at week 37
Week 37 often marks early term. Lungs are typically ready enough for life outside with standard newborn care. Baby continues gaining fat and refining brain connections.
Average size estimates for week 37 are about 48.6 cm and 2859 g — roughly honeydew melon. Your ultrasound report and clinician’s dating override any website average.
What you might feel
Mucus plug loss or increased discharge can happen — ask your clinic what they want reported.
You are in the third trimester. Two pregnancies at the same week can feel completely different — treat these notes as orientation, not a checklist you must match.
Movements in week 37
By now, many clinicians encourage intentional awareness of fetal movement. Learn your baby’s usual active window, then use Preglo’s kick counter to log a calm session. Read how to count baby kicks if you want a simple method, or the 10-kick count overview. If movements feel clearly reduced, contact your care provider — see reduced fetal movement.
What to track this week
- Symptoms, mood, sleep, and energy in your daily log
- Water intake toward a simple daily goal
- Appointment dates and questions for your care provider
- Scan dates and follow-up notes after ultrasound visits
- Kick sessions once movements feel regular — same time of day when you can
- Tightenings or early labor patterns with the contraction timer if needed
- Hospital bag checklist and “call the clinic if…” reminders
A calm next step in Preglo
Keep Preglo notifications gentle: week view + kick history + overnight notes.
Also useful: due date calculator · all weeks · Preglo features
Nearby weeks: Week 35 · Week 36 · Week 38 · Week 39
Educational averages only — not medical advice. Contact your clinician for symptoms that worry you, bleeding, severe pain, or reduced movements.