Our editors also may be in touch with follow-up questions. A pregnancy is divided into three trimesters, each lasting between 12 and 14 weeks. A full-term pregnancy lasts 40 weeks, or about 10 months.

There are three trimesters: the first trimester (early pregnancy), the second trimester (mid-pregnancy), and third trimester ...

To learn more, Ng and his colleagues took 273 tissue samples from 12 crab-eating macaques (Macaca fascicularis), including when the monkeys were in each of the three trimesters of pregnancy ...

While there is an extensive laundry list of beauty and skincare treatments expectant mothers should avoid during all three trimesters, there are surprisingly a lot of pregnancy-safe alternatives ...