Confused

I just recently had a chemical pregnancy at this beginning of this month, and it was a Letrozole cycle as I don’t ovulate on my own. We didn’t do Letrozole this month but I took an ovulation test this morning and I waited the correct time and it looked dark-ish but it looks to me like the dye was still developing, and then I went back in like 15 mins and this is how it dried. Has anyone else had this happen? Idk if it would be considered positive but in the first pic it looks to me like it’s still developing.