D'oh!
Happens to the best of us; but if we are lucky, it doesn't happen at all.
*Phew*
Man, how controlled were you!!! Just go it in, then bailed!?!! Good for you.
The fear of babies is a powerful thing
Do you have a family planning or someting to go to? They will give you a perscription for loads of condoms.
I would only worry if you don't like this girl enough to possibly father children with her.
Then you have some thinking to do weather it's a good idea or not.