Positive then negative?

Mae

I am currently on CD 37 Of 31 of a typically very regular cycle. A day after my missed period I took a FRER test and got a negative. Yesterday afternoon, which would have been 5 days after missed period I decided to take another one and I got a very faint positive (see below). I took another test this morning with FMU expecting it to be darker but I think it’s negative.

No sign of AF, and I’m not sure what to believe or if I can even start to process the fact that I’m pregnant 😩

Yesterday’s Test:

This morning: