Any advice?

I am 16 and new to this app. I have been dating a guy for 4 months now, but I don't feel like I am in love with him at all. I know I may be a little young to have sex, but I only do it because he wants to. And when we do, it doesn't feel great at all. Should I talk to him about not having sexual intercourse & try harder in the relationship or should I end it? Any advice would be helpful & appreciated 😁