Tmi be aware

So I’m about to be 33 years old this month. I have one son who was born last month. This is embarrassing to say but I’ve never had a real orgasm with a guy, or female. Actually only one guy has made me cum by oral sex and that took a long time. That was also like 7 years ago and it felt amazing. Sex feels good to me, however I just can’t get off. I’m not sure why, and no I don’t take medication. I can get off when I masturbate but otherwise no. And my boyfriend thinks there’s something wrong or his dick is too small but that ain’t it at all. Like I said it all feels good just doesn’t get me off. Idk what’s wrong with me