Is this called orgasm or what?

I was focusing on a yaoi smutty scene, keep imagining things while looking at it. At the same time, i was clenching my feet and its muscle while my hand keep repeatedly pressing my vagina[ i do this on top of my thin trousers, not naked], after i get the feeling, i can feel pleasure like my vagina is squeezing/contracting for a few seconds, and then i felt relieved after that. Is this called orgasm? [my palm of my hands really hurt being clenched by the legs ;p]