A woman’s chance of getting pregnant decreases after the age of 40, mainly because the ovarian function declines as she ages. Ovulation problems may also occur, so the chances of getting pregnant will decrease. If a woman has a requirement to plan a pregnancy, it is best to get pregnant before the age of 35, which will cause fewer complications, both physiologically and psychologically. In addition, it also facilitates the growth and development of the embryo, which is conducive to eugenics. It is best for women to plan a pregnancy before the age of 35. Women older than 40 years of age also have normal pregnancies, but the risks they take increase, as does the possibility of pregnancy complications.