Healthy motherhood is now a hot topic of concern. It is important to remind mothers who are preparing for pregnancy, especially those who benefit from the new policy of “comprehensive two-child” are mostly post-70s and are already of advanced maternal age, so the risk of having a second child is often greater. When is the best time to start taking folic acid? It is generally recommended to start taking folic acid in the first trimester of pregnancy, and it is best for both partners to take it together to prevent fetal neural tube abnormalities. When should I start taking calcium supplements? Do I need to take it after pregnancy? Calcium can be supplemented with calcium tablets and food to enhance bone density, promote fetal bone development and prevent hypertensive disorders during pregnancy. Calcium supplements can be started in the first trimester of pregnancy, especially for women of advanced age and those who show signs of calcium deficiency, it is recommended to start supplementation before pregnancy and can be taken until 37 weeks after pregnancy. It is advisable to have a bone density test before calcium supplementation to understand the calcium content of the bone so that the dose of calcium supplementation can be guided. What should I pay attention to in terms of diet? You should not be partial or picky with your food, and your intake should be mainly a balanced diet to meet your body’s nutritional needs. At the same time, you should consume more food with high protein content, usually eat more fruits and vegetables appropriately, and try to eat less junk food; drink more plain water, and do not drink coffee, wine, tea and other stimulating beverages. Make sure you get enough sleep every day and keep your mood relaxed. When to conceive the second child after the first cesarean section? It is recommended to get pregnant more than two years after the first cesarean, 2-3 years after the cesarean uterus scar muscle content is relatively more, relatively good elasticity. Generally, the chance of having another cesarean section in the first child is higher in the second child because of the high risk of uterine rupture in the scarred uterus during normal delivery. However, scarred uterus is not an absolute indication for cesarean delivery. If there are no other complications during pregnancy, and the scar thickness is thick in late pregnancy and the fetus is not large, etc., trial of delivery can be performed under close monitoring after comprehensive evaluation by obstetricians. Do I need to do other tests if I have free pregnancy tests? The free national pre-conception eugenics test is mainly for general couples. For those who are of advanced age, have a history of medical or surgical diseases that affect pregnancy, have abnormalities in previous pregnancies, etc., other targeted tests will be done according to the specific circumstances of each couple. The doctor will ask each couple’s relevant medical history and give individualized advice. It is important to have a professional pre-conception assessment before having another baby Blood sugar and blood pressure must be checked, and if they were elevated when you were pregnant with your first child, they are more likely to occur in your second child, and thyroid function should be checked. Many mothers-to-be have a combination of hyperthyroidism and hypothyroidism during pregnancy, which may affect the development of the fetus. It is also recommended to lose weight first if your body mass index is too high. Blood pressure, urine routine, blood biochemistry, uterine and cervical examination for the presence of uterine fibroids and other diseases that are not suitable for pregnancy are required before pregnancy. In addition to the female partner, it is also advisable for the male partner to come to the hospital for a pre-conception evaluation to check the sperm quality, etc. If a woman chooses IUD contraception after having her first child, it is relatively safe to get pregnant 3 months after IUD removal, and it is recommended to clarify whether there is inflammation in the fallopian tubes beforehand.