The best way to prepare for pregnancy is to start abstaining from alcohol three months before conception, and to quit some other bad lifestyles, as follows: 1. For men: the sperm birth cycle is usually around 70 days, that is, if you start abstaining from alcohol three months before preparing for pregnancy, all the sperm will have been changed once, and they will be relatively new sperm without alcohol poisoning. So, at least you should quit for about 70-80 days, at this time is a brand new sperm. 2, for women: if drinking alcohol is also bad, women will have a follicle discharge every month, but the growth cycle of eggs also has a long time. For both men and women, if you want to get pregnant, you should stop drinking, smoking and quit some other bad lifestyle about three months before conception. At the same time, pay attention to folic acid supplementation and have both spouses go for preconception checkups so that they can achieve the goal of eugenics.