Double Uterus

So I am currently 9 weeks pregnant. Last Thursday I passed a blood clot. But no other additional bleeding with it. Then again the next day and again that following day. All 3 times there was never any other bleeding. I waited until Monday, got a ultrasound and found out that I don't have a Bicorniate Uterus, I actually have a Didelphys Uterus! (2 completely separate uteruses, with 2 separate cervixs) And they said the cause of the blood clots was because the left Uterus had a period! And it showed my baby perfectly fine in the right one. Has anyone else experienced this? I find this to be crazy!