The couple are normal why not pregnant may be related to mental stress, environmental factors, coitus time is not appropriate and other factors. Couples have a normal sex life, menstrual cycle is normal, although both checkups are normal still not pregnant, need to pay attention to whether there is due to mental stress, want to have a child mood is too urgent, the environment is not good, or women’s nutritional status is poor may affect the pregnancy. In addition, it will also be because of the inappropriate time to have sex, not in the validity of the ovulation period to have sex, or have sex too often or too few reasons, may miss the best time to conceive. Couples with normal sex life, not necessarily contraceptive 1 year after the pregnancy, although the two sides of the various tests did not find abnormalities still not pregnant, you need to go to the hospital in a timely manner to seek medical treatment, by a professional doctor to give a comprehensive assessment to find out the reasons. During the preparation for pregnancy, both husband and wife need to maintain a good mood, do not be too nervous, pay attention to balanced nutrition, if there is any abnormality need to consult a doctor in time.