USCIS question, please help!!?

Not sure if you entered with a K-1 or B1/B2, but once interviewed and positively decided upon, the Green Card is usually only 2 weeks away. No, you won't be deported, as nobody who is eligible to adjust status will be deported. You are actually in the process to adjust status, almost done with it, so nothing bad will happen to you. If you can (meaning your employer is not requesting a new EAD), I would suggest you keep working. No, the SSN never expires, ever.