'Ectopic Pregnancy' is the more general term for pregnancy outside the uterus. Found this, hope it helps. 'Typically an abdominal pregnancy is a secondary impl

'Ectopic Pregnancy' is the more general term for pregnancy outside the uterus. Found this, hope it helps. 'Typically an abdominal pregnancy is a secondary implantation which means that it originated from a tubal (less common an ovarian) pregnancy and re-implanted.' https://en.wikiversity.org/wiki/WikiJournal_of_Medicine/Insights_into_abdominal_pregnancy#Mechanism https://en.wikiversity.org/wiki/WikiJournal_of_Medicine/Insi... "An ectopic pregnancy occasionally aborts backwards down a tube, or bursts out of it without killing the patient, and embeds itself elsewhere in her abdominal cavity. Sometimes, an ovum is fertilized outside a tube on the surface of an ovary, and then implants itself in the abdominal cavity. ... An abdominal pregnancy is thus a rare complication of an ordinary ectopic pregnancy" https://web.archive.org/web/20170814131930/https://www.meb.uni-bonn.de/dtc/primsurg/docbook/html/x5173.html https://web.archive.org/web/20170814131930/https://www.meb.u...