How many weeks is 3 months pregnant

The gestational weeks after pregnancy are calculated according to the first day of the last menstrual period. The expected date of delivery of the whole pregnancy cycle is calculated according to 280 days, that is, a total of 40 weeks. If the pregnancy is three months, it is equivalent to the first trimester, which is between 12 weeks and 14 weeks of pregnancy. This time belongs to the first trimester; between 14 weeks and 28 weeks, it belongs to the second trimester;28 weeks and above is the third trimester. The whole pregnancy cycle is 40 weeks. It is divided into three periods, the first trimester and the third trimester. The first trimester of pregnancy is the most critical period for fetal growth and development. Therefore, it is important to prevent exposure to these toxic substances at this time.