Did you know that getting pregnant after a tubal ligation is rare, but not impossible? Tubal ligation is a form of permanent birth control that involves cutting, blocking, or sealing the fallopian tubes to prevent fertilization. However, in rare cases, the tubes can spontaneously reconnect or a new passage for the sperm to reach the egg can develop, leading to pregnancy. Other factors that may increase the risk of pregnancy after tubal ligation include a history of pelvic infections or surgeries