Could I be pregnant????????

Me and my guy were fooling around and we ended up having sex. It was my first time. He tried going in but it hurt so much he didn't go all the way. He quickly pulled out and ejaculated all over my thighs. I've been paranoid ever since. It happened may 30th and according to my calendar I would ovulate June 3rd. June 4th i had discharge it looked like ovulation discharge. Today a gush of discharge came out. I'm cramping a little. I don't have morning sickness or spotting and My breast don't hurt. My period isn't until the 17th of June. Every little pain i feel I automatically jump to conclusions. Could I be pregnant? Is it all in my head? Could I just be psyching myself out? Im worried