I had sex in November only once. During sex, the condom broke, but he did not ejaculate yet, and his penis was either not inside when it broke or it may have been inside for a split second. He did not ejaculate yet either. We immediately stopped and used another brand new condom. Before he ejaculated, he pulled out, still with a condom on, and ejaculated away from my body. Two weeks after the sex, I got my period. This month, I have not gotten my period yet. I have been getting headaches, food cravings, been eating more, felt depressed, gained weight and/or feel bloated. I took one pregnancy test two weeks or so ago and it came out negative. I took another a week before and it also came out negative. I've also been feeling twitching in my pelvic region. Am I just paranoid? Please help.