What's happening to me?

I recently had a miscarriage 4 weeks ago. I got af 5 days ago. Still getting mild cramps. But the blood has slowed down a lot, to light bleeding almost spotting. Yesterday or the day before, I checked and my cervix was low. Well today my cervix was high and tilted. Is it possible for my cervix to have raised up already? I mean is that normal? I assume that's how there is increased fertility, maybe because the cervix raises and opens sooner? And longer? Opinions please and thank you.