How can I tell my boyfriend...

Okay… not bragging or something. I think I’m a very generous person when it comes to buying gifts for my close ones. If I have money I won’t be selfish and keep it all for myself… I will be travelling in two weeks to a very expensive country where things are highly expensive. My boyfriend is kinda ( not in a direct way) telling me that I should bring gifts for his parents also!!! I know it’s annoying and I don’t know how to say NO. I will surly get him lots of gifts and his mom also because she has bought me gifts before… That day I said I don’t know what to get to your brother and father?” and he didn’t even say “ No..No need or keep the money for yourself…” I worked so hard to get my money. It’s no body’s… my parents didn’t give me a penny. He must understand that I worked hard for my first salary from government and I should spend it at least for myself! THIS TIME. even though the money is not that much. I’m known for being kind and my selfishness and now I don’t know how to tell him that I can’t afford buying gifts for his father and brother also!

P.S/ I have to buy gifts for my best friend! so he and his family aren’t alone!