Am I pregnant?

Patient: I am a 21 year old female virgin. On July 2nd 2014 my partner and I were fooling around and I got precum near the top part of my vagina. We did not have intercourse it was mostly oral and touching. I had my period on the 5th of June before that and I got it again on the 9th of July. I ruled out pregnancy until I found out some women can still get their periods even when they are pregnant. So I took two pregnancy tests that came out negative. However I feel a slight cramping in my lower abode men that comes and goes and I’m not sure if it’s in my head or if I should be concerned. Please tell me your thoughts.Thank you.

Symptoms: Cramps