Extra uterine pregnancy (GEU) constitutes, by its frequency a problem of public health, by its gravity an obstetric emergency and a problem of fertility for the woman. It represents the chief reason of maternal death during the first quarter of pregnancy. The association of extra-uterine and intra-uterine pregnancy is a particular case of twin pregnancy said ditopic. It is rare, but non exceptional. The authors bring three cases to remind us of its existence.