I'm 15, can I say I love him?

For me, it really feels like I do love my boyfriend. We haven't been together for that long, but it feels different from any other relationship i've been in. I can't explain without being all philosophical. It really feels like I love him, but am I just deeply infatuated? People say you can't say you love someone at this age or stage, but I really feel like I do. Is it possible?