Mc 6weeks ago, period 2 weeks ago and now bfp at 6dpo?! Leftover hcg?! Help please xx

I had a miscarriage at 11weeks pregnant on Jan 16th (6 weeks ago yesterday), exactly four weeks later i had a period that only lasted 3 days but I was glad to have ‘gotten back to normal’ I used opk’s this cycle and got high then peak at cd10, my cm changed dramatically after that and I assumed I had

ovulated. Hooray.

Today I am 6dpo and took a test to confirm a bfn so when I test in a few days if it’s positive I would believe it and not just think it’s left over hcg. But....

I got this!!! I Know it’s really too early for this to be a true positive at 6dpo if my levels were 0 before. so is this STILL left from my mc 6weeks ago?! And if it is could i still have ovulated and have a chance this month or would the opks be false too?! 😩🤦🏻‍♀️🙁

Was so hopeful to at least be back to normal cycles and ttc but didn’t even consider my hcg might still be there after a period?! Has anyone else got hcg left after a period? I thought you’re levels had to be back to normal for you to have another period? 😢

Any thoughts very much appreciated x