Not progessing ? :( help

M.

I’m 2-4 days away from my period. I took a FR test last night and saw a very faint line within 3 min. It got darker as it sat, I took another one this morning and same thing. Saw a line and darker as it sat but it looks the same as last night. Could this be a chemical pregnancy? It’s not progressing :(

Test on top is last night/ I took pic this morning

Test on bottom is today