Could I be pregnant? Help please

Mikea • 29 yr old mother of 6 👦🏾👧🏽👼🏽👼🏽👼🏽👶🏽. Breast cancer cure supporter 💞
Good morning ladies. 
​Yesterday I posted a pregnancy test I took w/ blue dye that showed that I'm pregnant, but then I took a first response test & it said I'm not. Well kinda said I'm not, had a super faint pink line. Then later before I went to bed I took my other blue dye test & it showed the same as the first so now I'm confused & the excitement is slowly going away. My period ended on May 6th. My fertile window was from the 7th-12th with my peak day being the 11th. I had sex with my husband unprotected the last 3 days of my fertile window, one day being the peak day & the next where there was 22% chance of pregnancy. My period is expected to come on the 25th. Is it too early to detect pregnancy or were the blue dye tests right? I just want to know the real deal. Already halfway excited but part of me has doubts.