Having a large belly and stomach generally does not affect pregnancy. There is generally no relationship between pregnancy and the size of the belly and stomach. Factors affecting pregnancy include age, psychological state, frequency of sexual intercourse, and disease factors. The older you are, the more you are emotionally overstressed, the more anxious you are, and the more infertility-related illnesses can affect your pregnancy. Before you get pregnant, it’s a good idea for both partners to undergo a thorough physical examination to assess whether you can conceive normally. If you are too obese, it may cause various obesity complications, which may affect the pregnancy, so it is best to lose weight before getting pregnant, strictly control the diet, try not to eat food containing too many calories, weight control, to help a better pregnancy. Specifically, you can consult a professional physician for advice.