How to scientifically prepare for pregnancy and improve pregnancy success rate. Preparing for pregnancy is an essential step in the process of planning to have a child. More and more people are choosing to prepare for pregnancy scientifically to increase the success rate of pregnancy. So, how to scientifically prepare for pregnancy? This article will introduce it to you from the following four aspects. Proper diet During pregnancy preparation, a proper diet is very important. 3-6 months before pregnancy, women should increase their intake of vitamins, minerals, proteins and other nutrients. At this time, women should increase their intake of vegetables, fruits, beans and other foods in an appropriate amount.