You can’t have intercourse when you are newly pregnant. When we go to the hospital to do a checkup, as the doctor will tell the patient, in the third month of pregnancy is not allowed to have intercourse and tub bath. The reason is that in the third trimester of pregnancy, the fetus is not yet stable, until the placenta is formed, the fetus is relatively stable, and only at this time can you have intercourse. There are a lot of things that need to be taken care of during the third trimester of pregnancy, such as the need to take folic acid tablets to supplement folic acid, so as to prevent the occurrence of fetal neural tube malformation. The other thing is that within the third trimester of pregnancy, it is a stage of rapid formation of various organs of the fetus, this period of time the fetus is very sensitive, as far as possible, do not go to eat drugs and contact with toxic substances. The last point to note is that at 11-13 plus 6 weeks of pregnancy, you need to have an NT, which is a measurement of the thickness of the fetal nuchal translucency, which is the first time that the child is screened for malformations using ultrasound.