Hello Doctor, On Feb 14th I became cozy with my gf. We both had foreplay. I rubbed my penis over her vagina. My precum might have entered her vagina. It was 5th day of her periods. I was scared because she was saying that she is feeling pain down there. So next day she took I pill in empty stomach. After 3-4 hours she vomited. Today on 22nd she got her period again. She had travelled for more than 24 hours. Is this a reason she got periods again? Or is this sign of pregnancy? Please do answer.