Losing my mind and my hope

Jesika • Wifey to Enginerd, Mother to daughters, 12/21/09 and 05/16/2018, due May 2021 with #3, working hard to build a girl gang
My husband and I have been TTC for 5 months I know that everyone is different but I'm currently 5 days late. I've never been this late but these tests are driving me mad. I see something, the husband doesn't, others do 😩😩 In order (top to bottom)  the above test was taken 1 day before AF expected, then day of, then 2 days late and now this morning at 5 days late. All with FMU. I see something. Am. I. Losing. It. ??? Why isn't it getting darker if it is postive?? HELP