Hcg levels dropping?

When do your hcg levels start to drop after a miscarriage? I’m currently still bleeding from mine on Friday and I took a test yesterday just because I wanted to see if it was getting fainter...NOPE strong positive still. I’m just wondering when it will start to drop. I do have my appointment next Tuesday for bloodwork to see where I’m at then but we want to start trying again ASAP. I have been told and read that we can conceive even before my period starts but I’m just curious when my levels should start dropping. For starters I didn’t make it past 6 weeks with this one so my levels shouldn’t be extremely high