Heterotopic Pregnancy With Intrauterine 7 Weeks Twin Implantation After Clomiphene Citrate Treatment.

Heterotopic pregnancy (HP) is a rare condition with an incidence of about 1 in 30 000 in natural conceptions and 1 in 100 in cases involving assisted reproductive techniques (ART). The diagnosis can be challenging and often underdiagnosed due to the presence of an intrauterine pregnancy. We aim to present a rare case of HP, characterized by the presence of intrauterine twin implantation. This case highlights the importance of maintaining a high index of suspicion for HP even in the presence of a viable intrauterine twin gestation, particularly following ovulation induction with clomiphene citrate.