do girls cum/ejaculate?

When girls have an orgasm, do they actually cum or ejaculate anything? Might be a dumb question but I was with my boyfriend sexually for the first time yesterday and I came but he didn't know. I'm kind of shy and don't express things so I didn't say when I was cumming but I was making other noises and he didn't know I was done. He went down on me, so I was already wet.. should I have ejaculated something?