I hate this not knowing

I just honestly want to give up so I put it off having sex as much as I can. Last night he was trying so hard to so it happened. After we had sex... I felt sick so I had to vomit I know disgusting right the last time we had sex was maybe 2 weeks ago. My next period is about 20 days away. I don’t ever get sick so I am just tripping out I think it’s way to early to tell.