Help I have questions!!

So I'm gonna be straight forward..... I had "fun" on the 12th 13th and 22nd and oh yes he did lady's it happened. I have been feeling very differently lately. I'm trying to figure out if its nerves or I'm getting early pregnancy symptoms. I've been having nausea, and peeing alot. I love breakfast burritos couldn't, I got donuts I love donuts got three couldn't only stomach one, and my mom's famous cabbage pockets I had a taste and gagged. Im chucking up but not puking. I'm trying to figure out what's going on and when is the accurate day to test. Please help!!