Hi I Lost My Virginty Last Week And I've Been

Hi I lost my Virginty last week and I've been experiencing light cramping and werid noises like I'm hungry in my stomach and I'm worried that I'm pregnant. We used a condom and he did not ejaculate at all, I'm just super nervous and don't know if it's stress that's causing my stomach to feel this way or if I actually am pregnant. I don't start my period until January 12th and I don't know what to do