Spontaneous rupture of splenic artery aneurysm during pregnancy is a rare, life-threatening event with a catastrophic prognosis. Splenic artery aneurysm, known to be more frequent in women, especially among multiparous ones, is generally asymptomatic until rupture. Because of increased blood flow and hormonal modifications, this rupture occurs frequently during pregnancy, most often at the end of the third trimester. We present the case of a second parous woman in early pregnancy with a rupture of splenic artery aneurysm initially diagnosed as a complicated ectopic pregnancy, which profoundly modifies surgical treatment.