Could my feeling be right?

I had unprotected sex the first and second day I was ovulating, many times. It's only been a week, but I have a feeling that I could be pregnant. I still have eleven days until my next period. I've been really nauseous the past three days, my boobs are sore, and I have light cramping. I just have this feeling that I am. I'm trying to wait until I see if I miss my period.