What should I do?

Okay I was supposed to start my period on Oct.31-Nov.1st. I haven't started yet, so that makes me about 3-4 days late. I took a pregnancy test the second day I was late and it showed up negative.. But I've been feeling hungry a lot and at the same time full/sick, have sore boobs and bad insomnia and have been very emotional.. What should I do? I've been trying to conceive for a while and have had plenty of false alarms and I don't wanna be set up for disappointment!