No I didn't ejaculate prior to his "growth" haha but now that he's a lot bigger I can honestly say that every time we've had sex now a days my orgasms are the STRONGEST they've ever been and I think if he pulled out when I came, then it would have flooded the bed. It's like I curl up into a somewhat "fetal position" when I cum, it's pretty fucking intense if I do say so myself. But I have ejaculated without him inside me before and it was amazing. I think I do recall myself ejaculating when he wasn't as big as now, but only when he fingered me and stuff, which was also amazing. But I love it now that it's bigger. It's definitely more "defined" hehe.
Also another reason why I think I have stronger orgasms/ejaculate now is because I had something really personal happen to me back in February... if you want to hear more about it I can PM you about it because I don't feel like bringing it up publicly.
Also, back to your last part of the question about female ejaculation, I think that the size of the guy's dick DOES affect whether or not how strong her orgasm will be. I truely believe that only from what I'm experiencing, and it happens like every time we have sex. But umm... yeah, I don't know about any other girl. Every girl is built differently than the other so the outcome will be different, so I'm not sure. If there were more girls on [words=http://www.mattersofsize.com/join-now.html]MOS[/words] I'm sure there would be a poll on here about this subject
I hope that helped you out, if you need anything else just holla back.