Third, the gravitational effect of the moon is just as potent during new moonsâwhen the moon is invisible to usâas it is during full moons. There is a more serious problem for fervent believers in the lunar lunacy effect: no evidence that it exists.
Answer: Each pregnancy is divided into three trimesters. Each trimester is roughly a third of your pregnancy. These three trimesters have different emotional and physical happenings that make them unique. Here is a guided tour through each trimester:
A trimester is a third of a typical pregnancy. So if a pregnancy is 9 months, a trimester is 3 months long. The first and second trimester each have 13 weeks, while the third trimester has 14 weeks. Determining how far along you are in a pregnancy can get confusing.