Am I too young?

I'm 15 and I've been thinking about having sec with my boyfriend. he's been together for almost three months... and we done a lot of stuff.. and recently he was doing stuff to me and I didn't want to stop. like I kept going. the only reason we stopped was because he didn't have a condom. but should I go on BC? I'm scared to ask my parents because they'll think we're doing stuff and I don't want them to know...