14 weeks is how many months this counts, a week is 7 days, in pregnancy 7 days is a normal pregnancy week, accordingly, a month in pregnancy is a natural month, about four weeks is a month, but each month has 30 days, there are 31 days. So the third trimester is about 13 weeks. This is counted week by week, and 14 weeks is one week over three months. The first day of pregnancy is counted from the first day of the last menstrual period, there is no need to consider other factors in this regard, it is counted week by week, it is how much is how much, it is how many months is how many months, so that the 14 weeks counted down to three months more than a week. In 14 weeks of pregnancy began to enter the mid-pregnancy, in this stage of the pregnant woman and the fetus are relatively stable, this period due to the rapid growth and development of the fetus, the need for more nutritional intake, pregnant women need to pay attention to the appropriate supplementation of various types of nutrients, balanced diet, such as supplemental high-quality protein, vitamins, calcium and so on. In addition, the Down screening test can be done between 14 weeks and 20 weeks, and pregnant women need to conduct regular obstetric examinations and related necessary tests according to the actual situation.