although it is good to take all precautions during the pregnancy of your wife.. but i wonder who told you that a chest X Ray can cause damage to the baby !!! this is not true.. please check around on google and you will come to know that it is absolutely safe to get the chest X ray done... rest...
answering point by point to your queries :
1. Both me and my husband shd have the spouse name endorsed in PP OR if any of us has the spouse name endorsed in PP is it enough? - advised to have it done on both passports
2. Should we need to submit my PP to the PSK @ India ? How ;ong will...
No... since you are the primary applicant & you both have traveled to US after the rejection, this should not be a point worth considering for the Visa Officer.. cheers !
as per my understanding, you should have atleast 2 blank leaves (2 pages, front and back). This is because some countries have an embossing stamp on the visa. thus, blank pages are considered front and back. Not left & right.