well it depends on ur capability to manage thngs(as mentiond above) .
i too have resigned my job for my baby, but never felt bad or bored in staying at home ....
but if a family is in need of financial help thn ther is no pblm in goin for job , (provided child is in safe hands)....
its not a sin or crime ... just b calm n dont feel bad/guilty .. its for their future... but make sure wenver u r free b always with ur child and make her feel u love him/her very much....