Did i give my Gf and orgasm?

Yesterday i was with my girlfriend. I started finggering her from behind. She sat down and i continued. After a while she started shaking (her arm was shaking like crazy) she couldnt kiss the while time and i think i stimulated her clit. Did she orgasm? im not sure.. and she's never had one so she wasnt sure either... ive been going out with this girl for 4 months and we are very much in love...