25 Weeks Pregnant
At 25 weeks pregnant your baby is about the size of a cauliflower. You are in the second trimester, and this week brings its own small changes — for your baby and for you.
- Size of
- a cauliflower
- Length
- 34.6 cm
- Weight
- 660 g
- Trimester
- 2
Your baby this week
- Brown fat starts to build under the skin to help keep warm after birth.
- Hair begins to take on colour.
- A bright light on your bump may make your baby turn away.
Your body this week
- The pelvis loosens under the influence of relaxin.
- Comfortable sleeping positions get harder to find.
Common symptoms
- Broken sleep and difficulty getting comfortable
- Haemorrhoids, made worse by constipation
- Restless legs in the evening
What to expect
The middle months are usually the steadiest part of pregnancy. Energy often returns, the bump becomes visible, and appointments settle into a routine. With 15 weeks to go, this is a good time to plan ahead while you feel well.
Tips for this week
- Start getting used to sleeping on your side, ideally the left.
- Keep moving gently — a daily walk helps circulation, mood and sleep.
- Begin thinking about your birth preferences and where you want to give birth.
Frequently asked questions
How many months is 25 weeks pregnant?
25 weeks is about 6 months. Pregnancy months do not divide evenly into weeks, so counting in weeks is more precise.
How big is my baby at 25 weeks?
At 25 weeks your baby is around a cauliflower — roughly 34.6 cm long and about 660 g. Healthy babies vary a lot around these averages.
What symptoms are normal at 25 weeks pregnant?
The most common ones this week are listed above. Contact your doctor or midwife about heavy bleeding, severe pain, a fever, or any change in your baby’s movements.
Pregnancy weeks are counted from the first day of your last period, so week 1 begins before conception.
This article is for general information only and is not medical advice. Always talk to your doctor or midwife about your own pregnancy.