Still don't know what I should do 😫 ( Like seriously this is freaking me out! )

Andra
Ive posted about this before but now I want to get into more depth cause I seriously don't know whats going on. 
Me and my boyfriend had sex on the first day of my ovulation without a condom ( I know Im stupid af. ) But giving that he's only 2% fertile I didn't think to much and he pulled out. Now move on to 2 weeks later
So Im about a week late on my period but I pinned it on stress due to how much has been going on; but not to soon after that I started feeling odd. I was sleeping all day and food sounded horrible and I felt queasy here and there but nothing serious. I started having to use the bathroom a lot more ( Which my co-workers actually pointed that out ) and it feels like something to pushing on my bladder ( I didn't think much of it though ). My breast also started to hurt A LOT worse than they normally do during that time of the month as well, and it hurts in some spots more than others. I also normally get god awful cramps during this time but I have not had not ONE cramp, not even the slightest. I took a pregnancy test but it came back negative so I honestly don't know what to think 😫