Beta HCG dropping then rising again?

Erica

Okay, so 3 weeks ago I was told I was having a chemical pregnancy. My BHCGs had been dropping. Went from 69 —> 47 in 2 days —> 27 a week later. That last was 2 weeks ago and I’ve been spotting off and on since my very first HCG (when it was 69). I took another blood draw today to make sure it had kept dropping down and now it’s back up to 87. So I have no idea what’s going on, I’m waiting on my OB to call back with a plan but I’m very worried of it being an ectopic pregnancy. Anybody have any advice or experience with HCG dropping and then rising again?