Anyone have a CP with no bleeding?

I had a CP at about 4 weeks confirmed by blood tests on February 21st. I have not had one drop of bleeding since lmp in January. Is this possible? My doc said my cycle would resume as usual but it hasn't and I'm starting to worry that something isn't quite right. Has anyone else had a CP/MC and not bled at all?? I would have been due for my cycle to start last week but nothing. So confused. I've taken multiple HPT and bfn so that's not why!