Early pregnancy cervix/bleeding

Dayna

So I thought for sure I was miscarrying I'm about 4 maybe 5 weeks pregnant and my progesterone is very low at 5.1. I was prescribed progesterone supplements, then started bleeding with 2 clots. I thought my cervix was open but I checked again today and it's very clearly closed? Is that possible to open then close back up? Or could my progesterone have done something?