The conditions that must be met in order to get pregnant are as follows: 1) Adequate amount of healthy sperm, the higher the number of healthy sperm the greater the chance of conception. 2) The woman is able to ovulate normally and the fallopian tubes should be open and functioning normally. The endometrium can reach a certain thickness and is very tolerant, and can well accept the growth of fertilized eggs in the endometrium. The mother’s immune response after the fertilized egg is laid will not be rejected because it is too strong, the mother is healthy and can normally secrete various hormones to meet the needs of the embryo’s growth and development. 3. mental factors, cheerful, optimistic mood, calm and comfortable mind is also conducive to pregnancy, warm, safe and comfortable environment is also a very important factor, of course, easy to get pregnant can not be separated from the healthy bodies of both men and women. A warm, safe and comfortable environment is also a very important factor.