Did you take cytotec?
and did you have an U/S to confirm that everything came out?
I had to take cytotec on a Thursday when we found out that the baby no longer had a heartbeat...the baby came out that night, however, the gestational sac didnt come out until the next Monday (5 days later)...that day, I had very very strong cramps while it was coming out, and scared the living daylights out of my husband with the phone call I made...
I would definitely call your dr at least...

I'm so sorry that you are going through this...