Scared to stop progesterone

Caroline • 25, from Paris 🇫🇷😊
In february, I had a miscarriage at 5w4d. I had symptoms of lack of progesterone so when I got my BFP later the same month, my obgyn prescribed me progesterone suppositories (200 mg once a day). I had a US yesterday, and everything looks fine. My obgyn now wants me to stop taking progesterone.
And I feel soooo anxious to do it! I don't know why, but I kind of feel like I will miscarry again if I stop. I understand that the dose I've been taking is low, I know the placenta is taking over hormone production, but still, I'm sooo scared 😣 any advice or opinion?