EEA National's Maternity cover and some questions !

Hello all,
I need some advice regarding EEA4 application form.
My wife (EEA National)and me are married since 3rd November 2009. She was student since September 2008, but she has to take a break from University due to pregnancy and child birth. During that break she did some full time (3/4 months ) job to achieve maternity pay from the Government (Due to break from study for a year, she was not entitled to access her student loan). So, for maternity she continued her University since September 2008 to June 2009.
After child birth she continues her study from September 2010 and finished at July 2012 and started job without any gap till now.
my questions are,
a. is that maternity gap count as a temporarily incapacitated pay? or, void the treaty rights
b. my 5 years residence card is due in January 2015, there is no clear statement about maternity pay or gaps due to maternity explain in EEA4 form, what should I do?
c. If by any chance I got PR, and my wife has to go abroad due to job, do I have to move out with her at the same time or I can continue to live in UK.

Please give me some advice. I know it is almost eleventh hour to ask for advice , but I do not get any solution.

Regards,