I have a problem/blessing(for my age) and i need help?

Ok so I'm a 15 year old boy and my problem is that when I have sex I don't rly feel pleasure at all rly I just keep goin cuz she's liking it,so that means I don't *** .its a blessings right now cuz I don't have to worry about getting a girl preg but it makes the girls I've had sex with feel like I didn't enjoy it, trust me I enjoyed making them feel good lol but I read that this problem is from masturbation but I masturbate like 1 or 2 times a week so Idk. Plus I want kids later on in life so please help