I don’t know what to think

So I had sex when I was ovulating earlier in the month. When I ate some oatmeal the other day I felt like throwing up bc it just tasted off. But there was nothing wrong with it whatsoever my sister said it tasted fine to her. My bf told me he thinks I’m pregnant whereas I don’t think I am. He told me how he puts sugar in his oatmeal an asked me to try it an see if I felt like puking it up........so I did an shockingly didn’t feel like vomiting. I’ve been craving chocolate for two weeks even after I get it. I have no idea what’s going on with my body right now. I’m supposed to get my period in seven days an decided that if it doesn’t show I’m going to take a test.