Ok so this is the third time I've taken these test and I'm late on my AF. Getting a BFN. I've been feeling a lot different then I normally do. I'm starting to think these test aren't working? What would be the best test to buy so I can figure out if I'm pregnant or not? I mean I've taken these before in my previous pregnancy and they worked when I found out I was 2 months pregnant lol but now idk... This is kinda frustrating.