Did I just cry during sex??

I've been really nauseous and uncomfortable. I feel fat and gross and unattractive. My boyfriend was able to convince me to have sex earlier and it made me feel even worse. I cried during and we had to stop and continued to cry afterwards and then he felt really bad and kept apologizing but he's done nothing wrong. WHAT JUST HAPPENED TO ME? It was not in any way shape or form 'rape' I was not pressured. I just felt so gross and awkward and uncomfortable and dirty that all I could do was cry and quickly dress myself and cover up and shut the light out.