4 weeks after m/c

I'm 4 weeks after miscarriage and pretty sure I ovulated 2 1/2 weeks after we had unprotected sex a few times around that period and I have been monitoring my cervical position the last week due and wondering when aunt flo will return. In the last few days it has gone from low and firm to high,soft, and closed. I'm hoping this will be my rainbow baby! Fingers crossed. My dr gave me the okay at two weeks post m/c to start trying.