primary abdominal pregnancy

A primary abdominal pregnancy is a rare and serious medical condition where a fertilized egg implants outside the uterus, specifically within the abdominal cavity. This differs from a secondary abdominal pregnancy, which results from a tubal pregnancy that ruptures and implants in the abdomen.12

Ectopic pregnancies, including abdominal ones, occur in about 1-2% of pregnancies worldwide and are a significant cause of maternal mortality in the first trimester. Symptoms can mimic a normal pregnancy, such as breast tenderness and missed periods, but often progress to lower abdominal pain, cramping, and vaginal bleeding. If the implantation site ruptures, severe internal bleeding can occur, leading to light-headedness, fainting, and potentially shock.2

While most ectopic pregnancies occur in the fallopian tubes, implantation can also happen in the ovary or cervix. Treatment for ectopic pregnancies, especially abdominal ones, typically involves prompt surgical intervention. In some rare instances, an abdominal pregnancy can progress to term, but it carries significant risks for both mother and fetus.21