Success stories??

I’ve been on 200mg progesterone vaginally since I was 4 weeks pregnant, I am now 12 weeks 4 days and dr wants to take me off… I haven’t take it in 3 days and my anxiety is growing.. I miscarried at 5 weeks in may I’m assuming from low progesterone (levels never went over 10).. my dr doesn’t seems concerned with anything at all.. she almost blows me off.. won’t run test just in case, nothing.. I am terrified to lose my baby.. I love her so much already.. will I be okay? I know the placenta takes over but if I have issues making progesterone won’t the placenta have issues too??