I took a 5 days sooner tests last night as i’m not supposed to start my period for 3-5 days, it was a faint positive almost instantly and slowly got darker but stayed faint. I went to the store and got a digital test and that came back as not pregnant and then took an .88 one from walmart that was also negative. i took another 5 days sooner test this morning and it was positive but no where near as dark as my first one, so i took another .88 one directly after with the same pee and it was negative. Is it possible that i am pregnant and the sooner ones are just more sensitive? or..? i dont know what to think