The decrease in ovarian function decreases the chance of pregnancy, but pregnancy can also occur. 1. The number of ovulations decreases when ovarian function decreases. 2. When ovarian function decreases, the level of estrogen and progesterone secreted by the ovaries also decreases, so the endometrium may be thinner during ovulation, which may increase the incidence of unstable fertilization or preterm abortion. Women need to strengthen obstetric examinations and give regular progesterone supplements to ensure early fetal growth and development. Therefore, if a woman wants to get pregnant with ovarian insufficiency, it is better to adjust the ovarian function to normal before getting pregnant, in order to facilitate the normal growth and development of the fetus.