any advice or opinions greatly appreciated 💕

Any advice would be helpful! Super paranoid now. I took test Monday just bc I'm an obsessive taker AF due 5/29. But the first one was a faint positive and the second showed positive within seconds. I have been cramping for 2 days which I know can be normal but it made me paranoid so I took another test (I'm not bleeding or anything) but I came back negative. I didn't think there was such thing as a false positive but idk why it wld show and then not show now. 😔