Need some advice?

Massive pregnancy scare. I’m 16 my boyfriend is 18, currently I’ve only done 2 tests and both have come back with a faint ‘+’ meaning pregnant but it’s very faint. I’ve been getting over 50% of symptoms and now my body is starting to change and feel different to normal. I’m really struggling to get my head around it and just need someone who’s gone though it to talk to. It would be great if that was possible