You can have sex on the 29th day after a spontaneous abortion if you don’t have vaginal bleeding or abdominal pain, but you can’t have sex if you have abdominal pain or vaginal bleeding. Natural abortion will also cause some damage to the body and uterus, generally about a month after the natural abortion uterus can be fully recovered, in the uterus has not recovered well before to avoid sex, so as not to affect the uterine recovery or gynecological inflammation caused by premature coitus infection. Spontaneous abortion 29 days has been close to a month, if the woman’s body recovers well, there is no vaginal bleeding and abdominal pain and discomfort, and do ultrasound examination of the uterus is well recovered, there is no gynecological inflammation and infection phenomenon, at this time you can resume sexual intercourse, but you should do a good job of reasonable contraceptive measures, to avoid unwanted pregnancies. If there is abnormal vaginal bleeding or abdominal pain and discomfort 29 days after spontaneous abortion, or ultrasound examination of the uterus has not fully recovered, you can not have sex, and must wait until the uterus is fully recovered before intercourse. Whether or not you can have sex 29 days after a spontaneous abortion should be decided in conjunction with the woman’s recovery from the abortion, and you need to pay attention to personal hygiene, and you need to do a good job of contraception after resuming sex.