People back away from you when you have done something wrong. I think you should be honest and ask him what is wrong and why did he start talking less and tell him that you want him to care more about you. But if you think this would be too desperate, you can back away yourself and see what'll happen. Or maybe this is pretty normal. But if you want him to care more about you, you'd better tell him. Honesty is a good thing.
Hope I helped.

P.S: I'm from Turkey too. Pm me please^^

Okay but don't talk Turkish in the public forums xD

It's pretty normal, especially because you haven't really been together very long. As already stated, if you're curious as to why, just ask him. Most likely he just wants a little space and not to rush things too much as the relationship is still very new.

lol what onyxeyes said.

This is just how relationships usually are, when you first start going out it'll be all lovey dovey and close but as time goes on (usually within the first month) it'll start to die down. As long as he doesn't cut you off completely, I wouldn't worry too much.

But if it really does bother you too much, talk to him. Wont' get anywhere by guessing all the time

Yeah, I think he's just trying to keep some independence. I don't think there's much for you to worry about here.

You said you always call him first, so perhaps in his mind you're being a tiny bit clingy? I'm sure nothing is too wrong

You're a human being, and your boyfriend is acting like he is losing interest in you, and you're asking what can you do about it? Hmm..

Not even a rocket scientist can figure that 1 out.

well, in the beginning of the relationship, you have the most interest because you guys have these newfound feelings for each other and everything is just plain exciting for you guys. The fact that he texts or calls less is probably because that excitement is dying down, but that isn't any reason why the realtionship should end there. It's only natural in my opinion, but you should just talk to him on a steady base, and not be around him 24/7. You guys want to have a healthy relationship and give each other some space to breathe.

That sometimes happens in the beginning of a relationship. All I can really suggest is just talk to him and find out for yourself.

it could honestly be nothing, maybe he hasnt noticed that hes backing off.

If you go tell him you will sound totally obsessed which, could be good or bad.