Leaked at school??? help me please!?

It obvious that you have to go to school again, if not today then tomorrow, if not tomorrow, you get the point. First off, ignore what others have to think about you. If they ask you, be like, I sat on water, or I sat on something wet. Most likely, they won't even remember, but if they do, say as I said. Make up something about sitting on a wet place or something. Be confident. If you don't act confident then it will show on your face that there was a problem with you. If you remain confident, no one would have the guts to say anything back to you. Just stay strong!!!