So after a very romantic night, my girlfriend and myself are on my bed making out. An hour or so passes and so I slowly start to undress her over about a 20 min period till its down to just the pants. I start rubbing her crotch and she takes off her pants. I continue to rub the outside of her panites and then move my hand in, quite wet. After a few minutes of a variety of techniques she starts to arch her back, up and down, and then freezes in midair and whispers "oh god." Things downstairs get tight and even more wet and then she relaxes back onto the bed, with a smile. This happens twice more that night and once more in the morning.
Am I correct in believing these to be orgasms? Or am I completely deluded?


it could very well have been an orgasm. It sounds like one to me haha If its not too awkward for you, you could always ask her if she liked it and if she orgasmed.
I agree. Perhaps you can frame your query by saying that you observe some interesting moves on her part and are wondering if....
I find it strange that couples talk about communication being an important aspect of their relationship yet the woman fails to convey this important fact to her partner, leading him to wonder and always ask. A man shouldn't have to ask and disrupt the mood. A woman should communicate the fact that she had an orgasm by any number of ways. Consider a specific squeeze of the hand or a "whew" or "wow" or some other exclamation that the two of you work out that leaves no doubt. You do not have to make a declarative statement!