Help... what can I do?😭

Em

I've had three miscarriages... I assumed it progesterone and my obgyn appt isn't for awhile.. we had sex... randomly in my cycle... I took and ovulation test and BLAZING positive ... I'm scared... i regret it now... what if i miscarry again before then .. can a regular doc prescribe progesterone asap?...

Btw I can get pregnant EASILY... just have issues carrying past 5 weeks.