So last night I took a test and got a faint positive. This morning I took another but I can't tell if it's any darker? Or if it should be darker after only 12 hours between tests?

I have PCOS and we did not do a medicated cycle this month. I have a ton of cervical mucus and the tiniest bit of brown spotting that lasted 24 hours. I know the side by side they are dried out but I'll post original pictures within the time frame as well. (First picture is last night, second this morning, and third is the side by side)