My period is 10 days late (can be very erratic but normally around 35 days but currently on day 45 of cycle) and I took tests after it didn’t come and all negative. Then a few days ago I got this very very faint line on a test but thought it was just an indent, then tried a different brand this morning and photo shows how it looks. The line is thicker and darker at the top compared to the bottom so does that mean anything? What do you all think - is it positive?