In general, swimming is not recommended in the early stages of pregnancy because the pregnant woman’s body is more sensitive at this time and is prone to various accidents, such as inducing infections and miscarriages, etc. 1, inducing infections: after pregnancy, the level of estrogen in the body increases, the pH of the vagina changes, vaginal secretions increase, and the vaginal environment is more fragile. If you choose to swim at this time, a large number of bacteria in the pool will easily invade your body and cause infection, which may lead to vaginitis. 2. cause miscarriage: In the early stage of pregnancy, the gestational sac is not tightly bonded with the uterine wall, so if you exercise too much or move too vigorously, it may strengthen the uterine contraction and make the gestational sac detach from the uterine wall, which may lead to abdominal pain, vaginal bleeding and miscarriage. If pregnant women want to exercise, they can choose the following activities: 1, walking: pregnant women can walk with their families after meals or at leisure, which can promote blood circulation, improve the body’s metabolism and accelerate the discharge of body waste; 2, yoga: under the guidance of a doctor, you can do some yoga for pregnant women in accordance with their own situation, to improve the flexibility of pregnant women’s limbs and muscles, and also enhance the pelvic floor muscle tolerance.