It is, as always, up to you what you eat. You know it's not the best thing to eat, but did you test two hours afterwards?
Sometimes (depending on size and how much beer you drank as well, yes we know you drank beer and there is no point in denying it!)
you can "get away with it". For me two pints of beer and about 12 chips and I am about 7.5 two hours on so I am OK with that.
The point is, don't make a habit of it, and always test, it is to easy to shove your head in the sand and not test after a little treat.
Good or bad, you need to know.
For me pizza has to many carbs in it, it's the flour, but if it's just a small slice I could probably mamage it, but I don't bother, I would rather have the salad bar and a small amount of wholemeal pasta.
Did your pizza have all the trimmings? If your going to be naughty you might as well do it in style!
H