How do you talk to your girlfriend without her parents knowing?
You have to be very sneaky with her. If you dont want her parents knowing, At school ask her to meet you up somewhere everyday so you two can do chat like a normal couple
Obviously, being secretive isn't easy. But it's not hard to talk to the girl without her parents knowing. if she goes to you're school, there's a plus. if not, or you just want to see her on weekends than tell her that. Hiding things from parents may seem like a good thing at the time, but just remember all parents are caring and do things for reasons so mabye right now isn't the best time…
At 13 years old you should talk with someone you trust about having sexual intercourse, if you want to have sex without your parents knowing because it is a big step and quite a young age to do so. Perhaps the close friend or relative that you talk to will get the condoms for you. Condoms can be purchased without ID in many supermarkets and pharmacies.