I was living abroad for 2 years, came in September 2013, and then applied in October. my baby was 9 months then. I didn't file my taxes for 2012, but i got it. I just told them that i wasn't in the country and the date i arrived.
So you have nothing to worry about
just apply and it won't effect your application because its not considered finical assistance. good luck ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So you have nothing to worry about