Question

My boyfriend stayed the night with me Saturday, we had sex at least 20 times. Yes I know that's not good. But he cumed in me at least 10 times, I wasn't ovulating but I kinda feel pregnant. You know sometimes you can hair feel things. Could I be psyching myself or could I be? My stomach has been hurting, I have had a headache all day and my Niples are very dry and sore. I really hope I am pregnant, but I'm not sure. What do you think?