Was that a orgasm?

My boyfriend is great at sex! I'm turned on just thinking about it! But I never had that "Big O" 🎢🎆🎉

I think I had a "baby O"... We were having rough sex from behind. He was going really hard on me and it started to put me in a trance. I felt my hips, and legs get this pins and needles feeling like going to sleep almost, and felt my insides tingling. I can't describe it. I didn't even play with my clit when that happened I probably should have, but I don't do that a lot during sex.

Is it possible to have a mini orgasm? I never felt that during sex before, and it lasted for about 5 seconds