I am a j1 holder.my ds-2009 ends in may 2010.i am currently married to a us citizen.i want to file the i-30 and i-485.but before that i want to ask these question and any help will be gladly appreciated.

1. How do i know if i am subject to the 2 year rule or not.(it is not stated in my passport like the other j1 holders)

2.how long am i supposed to wait after marriage before i file the
i-30 and i-485

3.if i file and it is denied what should be my next step

4.if my visa expires before and there is still no reponse to my application am i supposed to return to my home country?

Thank you in advance !!!!!:d