How long it takes to have a spontaneous abortion after unsuccessful birth control varies greatly from individual to individual, and there is no data on this. Some patients with unsuccessful birth control will have a spontaneous abortion, while others may experience an inability to have a spontaneous abortion and need to undergo evacuation surgery.
Spontaneous abortion occurs in some patients while they are on birth control. In some cases, spontaneous abortion occurs about a week after the end of the medication used for birth control.
In some patients, although the birth control is unsuccessful and embryonic death occurs, there is no miscarriage, but rather, the uterine cavity continues to mechanize, and adhesion with the uterine wall occurs, at which time the uterus needs to be cleared in order to remove the gestational sacs or meconium.
After the failure of birth control, women are recommended to go to a regular hospital, consult a professional doctor, cooperate with the doctor to complete the relevant laboratory tests, and actively deal with.