I am working is a american company through indian consultancy.My Opt expired on September but I had my advisor extend my opt  (Threre is a new gap rule that covers the opt GAP so I did not have to go to school to cover that gap) but my advisor extended it till September end assuming that  BY October 1 I will have decision from USCIS.My h1b is still pending. Now my questions are:

1.       what happens if I do not get decision by oct 1?Can I still work in my current job till USCIS give decision or do I need to leave company and country by the end of September?

2.       Do I get some time to straight out my status if my h1 get denied? I can not even go to school till january because fall session is already closed.so what happnes to my status for that 3 month?