Abdominal pregnancy is a rare variety of ectopic pregnancy with high maternal and perinatal mortality. Persistent abdominal pain, mal-presentation, extreme displacement of cervix and lack of myometrial response to oxytocin stimulation are the important clinical diagnostic features of abdominal pregnancy. Diagnosis is missed in about 50% of cases on ultrasound. We are reporting a case of term abdominal pregnancy following tubal ligation, which was clinically suspected to be abdominal pregnancy but was reported as intrauterine pregnancy on ultrasound done thrice, Which led to confusion and the diagnosis was confirmed preoperatively only after incising through the uterus. MRI and CT scan should be done along with ultrasonography to confirm the diagnosis of secondary abdominal pregnancy for better surgical planning.