Can I get pregnant?

I'm on birth control, but I missed a day on 8/21/2016. I took my birth control that I missed the next day. Today is September 3, 2016 and I had sex with my boyfriend and he didn't wear a condom. He he came, he ejaculated on my opening and my inner thigh. Then he told me not to move and wiped it off, but it felt like it went it. Is there a possibility I can get pregnant????