The chances of conception 20 days after an abortion are relatively high, but the size of the chances is not certain, and is related to factors such as the woman’s physical condition and the degree of recovery. Under normal circumstances, vaginal bleeding can occur after abortion surgery, and can be recovered in about 7-10 days, the longest will not exceed half a month. Therefore, the uterine lining is basically repaired around 20 days after the abortion, which has the basic conditions for conception. And after the abortion surgery, the ovarian function can appear some damage. Ovarian repair also needs a process, so ovulation may be delayed. Ovulation is very likely to occur 20 days after the abortion surgery, so about 20 days after the abortion, intercourse may be conceived. If menstruation is delayed for more than 10 days after intercourse, you need to go to the hospital for a urine or blood chorionic gonadotropin test to determine whether you are pregnant.