What Other Sexual activity can I do without getting prego?!

Sixty nineing works great and is actually the best sexual activity I know of. When you do that, both people get to orgasm. And zero risk of prego.

I suppose 15 might not be too young for oral, although I would lock you in the attic if you were my kid. Remember, just because you can't get pregnant from it doesn't mean it's a "safe" sex act. There is a risk of transmission with mouth-to-genital contact.

you could let your boyfriend use a dildo(not a stray on).
you could give him a handjob or *******. yall could as we call it "dry hump" which is just humping up and down on him without actually putting it in

69er, ********, handjob, poke off, lickout, dildo. :)

oral is really all i can think of