Progesterone help, ASAP!!

I’m currently 7dpo and I know I’m pregnant. Mind you I’ve had 6 pregnancies but only one living. I know when I’m pregnant.

My doctor prescribed me progesterone, metformin, baby aspirin, folic acid, and a prenatal. Sad to start the progesterone pill as soon as I discover I’m pregnant and come straight in ASAP.

He opens in he morning but I don’t have a positive test. I KNOW I’m pregnant but should I start now. I’m heard of people starting as early as 3 DPO.

My SO has drove himself crazy today wondering if I should or not. There isn’t any harm is it is there? Starting early? Is there even such a thing as too much progesterone? It’s supposed to increase with pregnancy anyways, right?