My fiancée got off of birth control around the 12th of June, and had her period shortly after. The day she got off of her period, we had intercourse, but did not ejaculate inside of her. It is now July 15th, and she has not had her period again. She is worried that she is pregnant because she has had a few days where she was nauseous, she has had a few cramps, and she noticed a small lump in the lower left quadrant of her abdomen when she sucks her stomach in. My questions are: what are the chances of her being pregnant vs. her mind/stopping birth control giving her these symptoms?