During a natural pregnancy, the sperm and the egg fertilize to form an embryo in one of the fallopian tubes. The fertilized egg then moves to the uterus to attach to its lining. However, if there is tubal damage, this is unlikely to happen or, in some cases, the fertilized egg may actually implant into the fallopian tube. This condition is referred to as an ectopic pregnancy or tubal pregnancy and can lead to serious complications.

Causes of blocked fallopian tubes include:

Pelvic infections


Previous pelvic surgery

Initially, an ectopic or tubal pregnancy looks like a normal pregnancy. However, if you are already pregnant and experience symptoms such as extreme pelvic or belly pain or vaginal bleeding, it could mean that it is a tubal pregnancy and it is imperative that you consult with your doctor immediately.