what will happen to the ovum when the fallopion tube is blocked?

If one fallopian tube becomes blocked and an egg attempts to travel down to the uterus through it, the egg will not be able to make contact with a sperm cell. Occasionally, an egg will implant on the fallopian tube wall. When this happens, the tube painfully ruptures as the egg matures into an embryo. The embryo is expelled from the body and the fertilization process must begin again.