Am I preggo

Okay so hey this my first real post ...I had sex with my boyfriend the day after I was supposedly ovulating and him and I both are pretty sure he didn't pull out in time ...now my period is supposed to be here Saturday but for the past 3 days I've been nothing but nauseous and usually when I have sex so close to my period it comes early but not this time we tried to do it yesterday morning and I felt like I was going to blow chunks the whole time ....HELLLPPPP