1, adhere to a healthy lifestyle, targeted changes in bad behavior and lifestyle, take the initiative to eliminate or avoid exposure to various risk factors, reasonable diet, moderate exercise, adequate sleep, with a happy and calm state of mind and good health into the pregnancy stage. 2, pay attention to dietary conditioning, balanced nutritional intake, 3 months before preparing for pregnancy, both couples take a daily multivitamin containing folic acid, such as Sun Cun tablets or Jin Shier Kang. 3, both men and women go to the hospital for a pre-conception examination, the male partner needs to check the semen routine. 4.Take basal body temperature (download basal body temperature software, make a good record every day and form a curve), use ovulation test paper to measure ovulation (record the situation of each test, you can write down the test time after each test, you can keep the test paper, you can also use a digital camera to take pictures to observe the color shades) learn to observe cervical mucus and master your ovulation pattern. 5.If the ovulation test paper is weak or not positive or if you have not been pregnant for 3 months, go to the hospital for ultrasound to monitor ovulation and observe the development of follicles and whether you are ovulating. 6.If you have not been pregnant for 6 months, you need to go to the hospital for further examination. 7. If you have a history of fetal arrest or your menstrual cycle is usually irregular, you can have your blood drawn on 3-5 days of your period to check the hormone six.