When a woman is just one month pregnant, she should pay attention to avoiding infections, prohibiting sexual intercourse and staying away from radiation. 1. Avoid infection: women in their first month of pregnancy should make sure that their vulva is clean to prevent vaginitis and other conditions from occurring and to prevent inflammation from stimulating the development of the embryo. 2. Prohibit sexual intercourse: the pelvic blood circulation is faster during sexual intercourse, which may lead to preterm miscarriage, etc. Therefore, sexual intercourse is not allowed during the first month of pregnancy. 3. Stay away from radiation: you should stay away from electronic products during the first month of pregnancy to prevent radiation from affecting the genetic makeup of the embryo and preventing the child from developing chromosomal abnormalities. When you are pregnant for one month, you also need to pay attention to timely medical examination, ultrasound, blood HCG measurement, to observe whether the growth and development of the embryo is normal.