What is wrong with me

This past month I have been extremely irritable like I don’t know what is wrong I can’t stand to even so much as be touched every little thing is driving me insane. Last time I got this way I turned out to be pregnant and stayed like it the whole pregnancy. but idk I started getting like this the day after my period so have my doubts I’m pregnant. My period was about two weeks ago and I have been crappy and crabby ever since. Now there are some issues in my relationship that I have been keeping to my self but it’s kinda all coming out now but never been this bad.