Am I pregnant?

I'm not on birth control anymore cause of personal issues far as vaginal itching from the pills I was taking so, I stopped them. I had sex Tuesday unprotected but the guy pulled out and yesterday I had sex unprotected too. The sex position him and I were in was the riding position. And I heard him make a "umph" noise as if he busted a nut inside me. He did not tell me to get off him, So.... I stayed on top of him then I decided to get off. When I looked at his dick, I saw a little bit of nut inside the tip of his dick. I exactly knew he nut inside me cause I could feel it when I put my hands on my vagina (where he inserted his dick). I think I could be pregnant. I'm 21 years old and I'll be turning 22 in two weeks. It's too late to get a plan B. I'll just suffer the consequences. How long should I wait to find out?