opinion on this test?

So I took this yesterday and got a very very faint positive within the 10 min mark. Others can see the line in the first picture while some cannot but it's there. The first picture is within the 10 min mark, and the second picture is after it was finished. It just kept getting darker after the 10 mins. I know you're not supposed to look at the test after that mark but I've never had an evaporation line look like this. What do y'all think?