I have a friend that had sex on the day of her period. Which she thought it was going to be that day. 4 day's later she gets her period... She looked up some signs of being pregnant, and shes freaking out. She had her period with immense pain the day before and the day of. She told me her breasts are a bit hurting when she squeezes them, her period only lasted a couple hours, the feeling of throwing up but didn't after she ate food, and a really bad cramp. Is she pregnant?!?!