Wow, people are being very mean on this thread, LOL.
But seriously... Don't snitch... This'll all blow over before you know it, it may seem like a big deal now, and not that it's anything small but when you grow up is this really gunna make that much of an impact on your life? Of course not, you have to understand that your mom just caught her own child with drugs, obviously she's going to be upset, but that doesn't mean that she's going to hold it against you forever. Just ride this shit until it's over, it'll be over before you know it. Don't worry too much, I'm sure you have a lot of life ahead of you.