12 weeks pregnant
At 12 weeks you are in month 3 and the first trimester. Your baby is about the size of a lime: 5.6 cm and 14 g.
As big as
lime
Length
5.6 cm
Weight
14 g
Month
3
Trimester
first trimester
To go
196 days
Averages. Measured crown to rump up to week 20, crown to heel after that. Healthy babies vary a lot.
Your baby this week
Reflexes emerge: little hands squeeze, little toes curl.
Your body
The womb now rises just above the pubic bone.
Good to know
Many women notice nausea easing off around these weeks.
To sort around these weeks
- Your booking appointment and usually a dating scan, which fixes your due date.
- Decide when you tell people, and when you tell your employer.
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Frequently asked questions
How many months is 12 weeks pregnant?
12 weeks pregnant falls in month 3 of your pregnancy.
Which trimester is 12 weeks?
At 12 weeks you are in the first trimester.
How big is a baby at 12 weeks?
On average 5.6 cm, about the size of a lime. Healthy babies vary a lot.
How long to go at 12 weeks?
Until your due date (40 weeks): 28 weeks, 196 days.
All weeks
General information, not medical advice. If in doubt, call your midwife or GP. Sources: WHO fetal growth charts (Kiserud et al., PLoS Med 2017); Robinson and Fleming 1975; NHS, Your pregnancy and baby guide.