Week 21 of pregnancy
Week 21 sits in the middle stretch of pregnancy, when many people find the days a little easier.
About the size of a pomegranate
| Size | About a pomegranate |
|---|---|
| Length | 26.7 cm (10.5 in), measured from head to heel |
| Weight | 360 g (12.7 oz) |
| Trimester | Second trimester |
| Weeks to go | About 19 to your due date |
These are averages. Every baby grows at their own pace.
What's developing
Eyebrows and eyelids are in place, and movements are getting stronger.
What you might notice
Kicks may be easy to feel now, often when you're resting.
Everyone's pregnancy is different. If something worries you, call your midwife or doctor.
A tip for this week
Let your partner or a friend put a hand on your bump when it's busy.
Questions you could bring to your next appointment
- When is my mid-pregnancy scan?
- Will I be offered a glucose test?
- Is there anything I should change about exercise or work?
- NHS: Your pregnancy week by week
- ACOG: How your fetus grows during pregnancy
- Hadlock FP et al. In utero analysis of fetal growth: a sonographic weight standard. Radiology 1991 (weights from week 10)
- Robinson HP, Fleming JE. A critical evaluation of sonar crown-rump length measurements. Br J Obstet Gynaecol 1975 (early lengths)
Questions
When do most people feel the baby move?
The NHS says most people first feel movements between 16 and 24 weeks, often later in a first pregnancy.
When is the mid-pregnancy scan?
The NHS offers it between 18 and 21 weeks. It checks how the baby is developing.
Is my baby exactly this size?
No one is. The size, length and weight here are averages from published growth charts. Your scan results are the ones that count, and your midwife or doctor is the person to ask about them.
Start with today
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