The "standard" timing belt change interval is about 60k, so you ought to be halfway thru your third one. That said, that interval is probably set so that the miles to failure graph put's that interval in the under 1% chance of failure category. Especially on an interference engine like yours. I agree with Hazy, drive it home, unless removing one of the belt covers discloses lots of fraying and chunking or cracking or missing belt teeth.

Just to make you worry, the sound of the belt breaking is utter silence. You never hear the valves hitting the pistons. The motor just quits running...