How do I tell the difference?

I know I have to just wait it out and it sucks. But is there really no difference between pregnancy and one symptoms? Some cycles I will even throw up with makes me think I’m pregnant every month then I end up getting my period right after I test a week late or something. I am having some symptoms I’ve never had before but I hate getting my hopes up... I feel super weird but idk it’s probably nothing but I don’t wanna be heartbroken when it’s nothing. Anybody else have this problem?