Pregnancy weeks and months

Learn how to figure out how many weeks pregnant you are and what week of pregnancy you’re in, plus the number of weeks, months and trimesters there are.

Pregnancy is roughly divided into 3 stages known as trimesters of about 3 months each : first trimester – conception to 12 weeks. second trimester – 13 to 27 weeks. third trimester – 28 to 40 weeks.

Pregnant women are always on their toes to know when they will give birth to the baby. So to help you out, here is our pregnancy calculator week by week.

See our pregnancy weeks to months chart, find out how long a trimester is, and learn how to calculate your due date.

Is it 27 weeks, or 28?? 26 wk + 3 days Oh, and did anybody else make a count down for their due date!?