Sweet girl,... it takes a few weeks for the symptoms to show up. Also, you would have some other symptoms such as headache, fever, feeling of having the flu, itching and pain upon urination. If it just happened, chances are you did not get it from him. I have been dating, and now married to the man of my dreams, and have never been unfaithful to him. Just last week, I started what the Dr said looked like an outbreak. It never hurts to go to a planned parenthood clinic. They can test you for a lot cheaper, and it's confidential. I think that also applied to minors. If finances are an issue, you might talk to your close friends or any other adult you feel you can talk to and see if they can help you get the exam done. I am here if you need to talk. I am sorry you are scared, I know the feeling. Never a dull moment... just be EXTREMELY careful in the future.