I have a hairline crack on my windshield that runs from top to bottom. How long can I expect to drive until the thing just breaks down and the window shatters because of it?
Do you really want to find out? I don't think there's any way of really knowing. Some windshields are thicker than others and driving conditions vary. If I were you I'd get it replaced as soon as you have the money.
Depends on the weather and driving conditions. It may last a while and it may not. Your insurance should cover replacement. Why don't you call and find out. Don't take the chance.