Week 37 of Pregnancy

Baby Size Comparison in Week 37

In week 37 of pregnancy your baby measures about 48 cm long and weighs about 2.9 kilograms: roughly the size of Leek. Remember these are approximate averages from standard growth charts; every baby grows at their own pace, and your doctor follows your baby's personal growth curve across visits, not a single number. If an ultrasound measures a little bigger or smaller than average, that is usually normal as long as growth continues at a steady rate.

Baby Development in Week 37

Growth is complete! From week thirty-seven, the baby is considered full term and ready for life outside the womb; the brain and lungs are mature, and all organs work efficiently. The brain keeps growing quickly even after birth.

The fetus practices breathing with rhythmic movements of the amniotic fluid, and practices sucking and swallowing with complete coordination. It stores fat at about 200 grams per week, rounding its body. Most fetuses are head-down and engaged in the pelvis. The weight is about 2.9 kilograms and the length 48 cm. Birth may happen on any day from now; you are in maximum readiness.

Growth is complete! From this week, the pregnancy is considered full term and the baby ready for life outside the womb; the brain and lungs are mature and all organs work efficiently. The brain keeps growing quickly even after birth. The fetus practices breathing with rhythmic movements of the amniotic fluid, and practices sucking and swallowing with complete coordination. It stores fat at about 200 grams per week, rounding its body. Most fetuses are head-down and engaged in the pelvis; and birth may happen on any day.

Your Body Changes in Week 37

The cervix begins thinning and opening gradually (your doctor may tell you a percentage), and the mucus plug may come out as a jelly-like discharge. Braxton Hicks contractions intensify and sometimes come closer together.

You may feel mild diarrhea (the body cleans itself in preparation for birth) and period-like cramps. Fatigue and exhaustion are at their peak, and sleep is very interrupted. Weight gain may slow or stop. Emotionally: intense anticipation and fear of the unknown; remember your body is designed for this moment and the medical team is with you step by step.

Cervical thinning and the mucus plug coming out are signs of approach. Braxton Hicks intensify sometimes. Make sure your partner stays nearby and available. And rest; you are in the final days.

Practical Tips for Week 37

• Finish the baby's room and welcoming supplies completely; birth may happen at any time.
• Make sure your phone is charged and your partner stays nearby and available around the clock.
• Review the birth plan with your doctor one last time and discuss any changes.
• Rest as much as possible and save your energy; you are in the final days before the meeting.

Frequently Asked Questions About Week 37