O00: Ectopic pregnancy

O00.1: Tubal pregnancy

Pregnancy can occur when at least one mature egg cell is fertilized. A woman has two ovaries. Each ovary normally takes turns maturing one egg every month. These eggs may be fertilized by sperm. The eggs pass to the uterus through the fallopian tube.

Various reasons can lead to the egg cells not being able to get through the fallopian tubes. The fallopian tubes may be stuck together or constricted.

The fertilized egg cell continues to develop in the first part of pregnancy. This is known as an embryo. The embryo needs more and more space as time goes on. Usually, an embryo can only continue to develop into a child in the normal place within the uterus.

In your case, at least one embryo is in one of the fallopian tubes.

If the embryo is not continuing to develop in the normal place within the uterus, this can lead to various problems. For example, you may have pain in the lower abdomen. Irregular bleeding from the vagina may also occur. If the embryo continues to develop in a fallopian tube, then the fallopian tube can eventually rupture. This can lead to sudden, very severe abdominal pain. There may also be a lot of bleeding. This causes you to lose consciousness.