Is it wrong that I want presents from my boyfriend all the time?
Why would you want presents? Does he give you presents often?
I don't know, I just want presents
You can't expect presents for no reason. That is being spoiled and it would make your boyfriend think you're only with him for his money.
What if I demand presents?
Then he still would be upset because now you are being demanding. You should wait until the holidays or until your birthday to expect presents.