Thank you for your question and I understand your concern.
I recommend not using the oven until the oven door glass has been replaced. It would not likely cause any issues if you just use the bake or broil feature but then again the glass could shatter if the door was to shut too hard/fast or if the oven temperature is set to high. I would wait to use the oven until the glass was replaced.
I hope this is helpful. If I may be of further assistance as more details become available, please reply to this post. You can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services