Calm down everyone. Everyone starts panicking, going onto automatic pilot - "go to a clinic right now, straight away, quick, quick get a taxi, urgent, urgent..." The thing is, it's extremely unlikely that you've caught anything deadly.
I agree with the poster above. Pregnancy is a far more likely possibility. Let's hope it's a girl, that way when she grows up, like her mother she'll go on the game so she can look after you in your retirement.