What are the main symptoms of a failed tubal ligation?

Pregnancy: Pregnancy! and women who become pregnant after a tubal ligation have a higher risk of an ectopic pregnancy, which is where the pregnancy is outside the uterus (usually in the tube) and is very dangerous.

Pregnancy: The only symptom of this would pregnancy. You may be able to determine if your tubal ligation is reliable or not by having a procedure called an HSG (hysterosalpingogram) which can determine whether your tubes are blocked or open.