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Second trimester

Pregnancy week 25

This week your baby is about the size of rutabaga — around 34.6 cm and 660 g.

Your baby this week

Your baby is now about the size of a rutabaga, and the skin is filling out as fat builds up underneath, smoothing away some of the wrinkles. Tiny blood vessels forming beneath the skin give it a soft pink tone, and the lungs continue to mature as they begin producing surfactant to prepare for breathing. Hearing is becoming sharper, so your baby may respond to familiar sounds like your voice this week.

Your body this week

You may be noticing your baby's movements more clearly now, along with some back discomfort as your belly grows. Heartburn and a feeling of fullness are also common, and every mother's experience is different, so there's no need to compare yourself to others.

Tips for this week

Try to sit and stand in comfortable positions that support your back, and tuck a small cushion behind your lower back when sitting for a while. Eating smaller, more frequent meals can ease heartburn, and remember to stay well hydrated. If anything feels unusual or worries you, don't hesitate to check in with your doctor or midwife.

Frequently asked questions

How big is the baby at week 25?+

At week 25, your baby is about the size of rutabaga — roughly 34.6 cm and 660 g, though every baby grows at its own pace.

Which trimester is week 25?+

Week 25 falls in the Second trimester.

How many weeks are left at week 25?+

At week 25, you have about 15 weeks to go until the typical 40-week due date.

Is week 25 normal?+

Every pregnancy is different. If you feel well and your check-ups are on track, week 25 is usually a normal part of the journey — but always reach out to your doctor or midwife with any concern.

This guide is for general information and reassurance — it isn't medical advice. Always follow your doctor or midwife for your own pregnancy.