My Electric Guitar's Bridge is sticking out?

I broke a string a couples weeks ago and replaced them. While doing the tuning part for my thinnest string I heard a *TINK* sound. my string didn't break so I kept tightening. One day later I notice my bridge was sticking out like it was being yanked out. Is this a problem? and if it is how do I fix it? If it matters the guitar is a Fender standard strat HSS.