Is it normal to orgasm without cumming?

I have been thinking about it lately and I know the difference between having an orgasm and actually cumming, but I don't know that I've ever actually came while having sex with my boyfriend. The sex is always good, though I struggle to orgasm through penetration alone, and so I don't orgasm very often, but I don't think I've ever cum as a result. And he's pointed it out to me before. I've been able to make myself cum a few times, (again, not often at all though) but never from him. And it's not because he doesn't know what he's doing lol, I promise! It just takes me so long to reach the point of an orgasm and so I rarely do get there, but I was wondering if it's abnormal to never cum. I know they don't go hand in hand automatically, but does anyone else have trouble actually cumming? Whether it be by themself or through sex?