I know this is a questions I should be asking my doctor. But I just wanted to see if I could get some insight on here first.

I took a test on 12dpo (thinking it was a pregnancy test). I got a faint line. Turns out I accidentally took an ovulation test. I got my period 24 hrs later.

Why would I have a faint line of LH before my period?

From what I have googled, increased LH is what causes PCOS. I don’t have any other symptoms of PCOS other than being unable to conceive for 9 cycles of trying.

Any insight? TIA