My young teen daughter stayed the night at a friends. I found out she had sex. She had her period 4 days later. And now this month she is 7 days late. I made her take a pregnancy test on her 5th day late and it was negative. I am so upset and I just can't believe any of this has happened. The house she was at the parent is a respected teacher in our community I never would have thought anything like that could have happend. Please help