I had protected sex in September after a year of not having sex i had sex twice in September & my period still hasn't came. He didn't cum in me and the condom didn't break. I also had the flu in September also. I took 4 urine tests all negative and my blood test came back negative. But my stomach cramps me sometimes & i can also hear my stomach. And it also seems bigger but idk if maybe I just got more fat in my stomach. Could i be pregnant?