There is no need for contraception during pregnancy because women do not ovulate again when they are pregnant due to changes in hormone levels and cervical mucus prevents sperm from combining with the egg, so even if they have intercourse, they will not become pregnant again. However, there are certain restrictions on intercourse during pregnancy.1. Pay attention to the period: intercourse is prohibited before the 12th week of pregnancy and after the 28th week of pregnancy. The first 12 weeks of pregnancy is an important period for the development and maturation of the embryo and fetus, and external disturbing factors may lead to miscarriage; after 28 weeks of pregnancy, the weight of the fetus begins to grow rapidly, contractions are more intense and frequent, and the fetus is susceptible to early delivery by external influences. The company’s main business is to provide a wide range of products and services to the public. 2, sexual hygiene: during pregnancy intercourse should also pay attention to sexual hygiene, if the male sexual organs are not clean may cause inflammation of the reproductive tract, so it is recommended to wear a condom. 3, gentle movements: men should pay attention to the strength, gentle movements, to avoid abdominal pressure, to reduce the impact on the fetus. If there are special circumstances such as placenta praevia, intercourse should be prohibited.