It is also normal to not get pregnant after 4 months of preparation. There are many factors that affect pregnancy, and even if the man and woman are healthy, they may not necessarily get pregnant after intercourse. It may be that the sperm and the egg do not meet, or that they do not meet and combine successfully, or that the fertilized egg does not attach to the bed after it is formed. Therefore, it is normal to prepare for pregnancy for 4 months without getting pregnant, and women should not have psychological pressure. Bad mood rather affect the pregnancy. If you have been preparing for pregnancy for more than 1 year and still not pregnant, it is an abnormal situation. Both men and women need to consult a doctor in time to clarify the cause of infertility and treat the cause. During the preparation for pregnancy, women should pay attention to try to increase the frequency of intercourse during ovulation, relax and do not give themselves too much pressure. Maintain a healthy lifestyle, quit bad habits, make the body in good condition, can improve the chances of pregnancy.