Orgasm

Hi guys. So this might sound a little weird so please don't judge.

I'm 22 and still a virgin. I'm in a long distance relationship with a guy I love and trust, and we plan to see each other in 6 months and hopefully be able to live together. We've seen each other in person before so that's not an issue.

We're talking about sex a lot and I feel like the time is right and the person is definitely right!

I was just wondering though, when you have sex how do you know if you orgasm or not? I know some women experience female ejaculation, but for those who don't, how do you know that you actually did or didn't orgasm?