Primary peritoneal pregnancy: a case report.

A 22-year-old primipara using intrauterine contraceptive device was diagnosed to be in haemorrhagic shock due to acute ruptured ectopic pregnancy. At laparotomy, both tubes and ovaries were normal and products of conception were found to be implanted on the posterior surface of uterus near the attachment of right uterosacral ligament producing a haemoperitoneum of more than 2 l. This is the fourth case report of primary abdominal pregnancy associated with intrauterine contraceptive device (IUCD).