stop taking progesterone ?

I had 3 days spotting at 5 weeks because of a SCH but it resolved until 9w . the doctor put me on progesterone but todays scan at 13w he said to stop taking progesterone. I’m really afraid to stop taking it in afraid of MC of bleeding again. What would you do in my place? Honestly idk what to do progesterone was my safety net now and i’m panicking rn to stop.