In the first trimester of pregnancy is also early pregnancy is generally not recommended to have intercourse, sex in early pregnancy, the pregnant woman and baby will have an impact. First, it is easy to lead to pre-eclampsia miscarriage, at this stage the uterus is particularly sensitive, if the number of sexual life is too frequent and too strong, it is likely to cause pre-eclampsia miscarriage, resulting in abdominal pain, vaginal bleeding and so on. Secondly, it is easy to cause infection. After pregnancy, the hormone level changes and the vagina becomes more vascular, if you have sex at this time and do not have good personal hygiene, it is easy to cause vaginal inflammation in pregnant women. So you can’t have intercourse in the first trimester of pregnancy, and you can’t have intercourse in the second trimester of pregnancy, and you have to be moderate if you resume sex in the middle of pregnancy.