Advice please!

Racheal

I am currently 5 weeks 2 days pregnant and my HCG levels were at 61, three days later they were at 203 then four days later (yesterday) it went down to 101. She said it could spike up but wants me to stop my progesterone that I take nightly and an hour after taking to my dr I started bleeding. It’s like a period but lighter. Has anyone has experience with their HCG going BACK up after it lowers without having a miscarriage? It’s my first pregnancy. Also.. how long until after this miscarriage can I start to try again for a baby.