Is it weird that I don't want a phone?

I'm 14 years old and everyone else has one and Just don't care for it. When guys ask me for my number I tell them "I don't have a phone." and they don't believe me. My aunt is all about that kind of stuff and I'm pretty sure she is going to get me an iphone 5. How do I tell her I don't want one or How should I fake being surprised?