Late?

I know I'm over thinking it and I guess I'm looking for some support. I've been posting that my BFs condom broke and I was 27% high risk. I've been late now for my period. I've been nauseaous and my breasts have been sore. I can't handle certain smells food. I took 3 tests and all said negative. I'm kinda bummed that it says negative but what is my body doing?!? Any advice would be great