1. Basic knowledge for women preparing for pregnancy Before preparing for pregnancy, women need to understand their physical condition, including menstrual cycle, ovulation time, reproductive organ health, etc. In addition, you also need to pay attention to the impact of diet, living habits and environmental factors on pregnancy. 1. Menstrual cycle Women’s menstrual cycle usually lasts about 28 days, but there may be irregularities. Knowing your menstrual cycle can help women determine when they ovulate and then choose the right time to have sex. 2. Ovulation time Ovulation refers to the release of eggs from the ovaries