I'm not sure if i'm pregnant

Hi. I'm not sure if I'm pregnant. I've been having unprotected sex for 3 and a half years but it was always pull out until just recently (march 28) he started cumming in me. Since then I've been having pregnancy symptoms. i took a test and it was negative and i got my period 2 days after the test, or so i think it was but it was lighter and shorter, about 3-4 days when I'm usually an entire week and a day. Well even then, i was still having pregnancy symptoms. Kay well, i was still having unprotected sex after that and i got my period again.But again, it was shorter and not as heavy as it should have been. 2 days before that, i took a pregnancy test and it was negative. The thing is that, my breast were really sore 3 weeks before i even got my period(mothers day). I've never had sore breast before my period, during my period or after my period. I was done with my period on wednesday. I also was getting a lot of cramps about a month before and i never get those unless I'm about to start my period in like 2 hours. And i know it's weird because when people test and they get a negative and they're imagining those symptoms, they usually go away, but the thing with me is that even with those two negatives, I still feel those symptoms. I don't feel like I'm imagining it because even when I'm not thinking about it, i get a random nauseating feeling or something out of nowhere. I don't know, i just FEEL pregnant.
Here are my symptoms:
Nauseous (no throw up)
Frequent Headaches
A lot of Bloating
Hungry more than usual
Pooping a lot more
Sore breast
Lower Back cramps
Moody/Emotional

I absolutely LOVE Trix but both times I've tried eating it, it always taste gross and i feel nauseous.
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