It is normal to prepare for a second pregnancy for two or three months without conceiving, and it is abnormal to prepare for more than a year without getting pregnant. Pregnancy is a complicated process, one year of preparation without pregnancy can be diagnosed as infertility. Preparation for two or three months without pregnancy without too anxious, worried, you can go to the hospital to do a physical examination, such as endocrine examination, to determine whether the hormone level is normal, tubal examination of the fallopian tubes are blocked, the male can do a semen check whether the fertility, to ensure that eugenics. In addition to preparing for pregnancy should not be overly anxious, it is recommended that during the preparation period to quit smoking and drinking, appropriate exercise, pay attention to balanced nutrition, ensure sufficient sleep, you can choose to have sex during the ovulation period, to increase the probability of pregnancy.