12 weeks pregnant
Trimester 1 · about 2 months · baby is about the size of a lime.
Baby at 12 weeksa lime5.4 cm · 14 g
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Your baby this week
Reflexes are developing: fingers can curl and the baby can make sucking movements.
You this week
The top of your uterus may now be felt just above the pubic bone.
Care this week: Nuchal translucency scan window: 11+2 to 14+1 weeks.
Frequently asked questions
How many months is 12 weeks pregnant?
12 weeks is about 2.8 months of gestation, counted from the first day of your last period. You are in the first trimester.
How big is a baby at 12 weeks?
Around 5.4 cm long and 14 g, roughly the size of a lime. These are averages; individual babies vary.
Not sure which week you're in? The pregnancy calculator works it out from your last period or due date.