I Am Currently On The Depo Shot After Delivering In Sept. I Haven't Had A Period Since Delivery. I Got The Shot On Dec4 This Is My 1st Period. I Have Blood Clots Bigger Than A Half Dollar. Do You Have Any Suggestions On What Is Happening. I Delivered By C-section. I Haven't Been Sexually Active Since June Of 2006.

This could be effects from the depo and your delivery. Could be some blood left behind in the uterus.

However, you really do need to get this checked out by your physician.