Early HCG levels?

Caitlyn

So i have a history of recurrent MC. I believe I may have experienced delayed implantation OR I’m currently headed towards MC. My levels started at 0 went to 6 then 18 then 26 but i know these are super low. I SHOULD have ovulated 2/3 according to glow and my ovulation tests. I’d anyone else dealing with levels this low?