Chances are really slim. Now day's it's so hard to know what's 0! If you continue to worry I would just talk with your girlfriend, if you haven't already and maybe talk to her about a test or wait to see if she get's a period, either way do what's going to ease your mind! But honestly chances are so slim!

Bump

I really doubt she would be pregnant. But if you havent already talked too her about your concerns, you should do.

If she dosent know already that there is a really slim chance that she could be pregnant you should tell her, like now.. Because if she is pregnant, its her body thats going too change not yours.

If she does end up being pregnant, she is either really lucky, or really unlucky- depending on your situation.

Ps.
I think its really sweet to see guys on here, shows that not all guys are bad, and that some do really care.

I agree with the other posters....

So its not really anything to worry about and lose sleep about?

I dont think so............