Okay, I know what you guys are going to say.
1. If home pregnancy tests are negative, then you aren't pregnant.
2. All of those symptoms mean nothing unless you have missed your period.

Well, I have missed my period. 5 days ago. Yes, my periods are regular and they have been for four years. No, I am not under any deal of stress because quite frankly I've been sitting on my butt doing absolutely nothing for the past month. No, I have not changed my diet, I am not anorexic, nor am I on or off birth control.

I feel sick. My breasts are literally throbbing sometimes and I've been bloated. My lower back and my abdomen hurt terribly ever since 10 days after my unprotected sex. I started spotting then too. I am so gassy it's disgusting and ridiculous and nauseated randomly and I also know that most of these are PMS symptoms. But it doesn't look like my period ever decides on showing up, so I really would like advice on what could be wrong with me? thanks.