1st usg showed a gest sac &yolk sac on left horn & der was blur image on rt one.2nd scan showed gest sac on rt side n no yolk sac.hv retrovrtd uterus?

Complicated: Your question is very complicated and your descriptions are not entirely clear. I would ask your doctor to read your ultrasounds and let you know the findings. If you had a yolk sac, that's a good sign. If you have a didelphys uterus, then of course you already know there can be more complications with that. Ask doctor for reading and clarification though.