i am a working mother and yes i did entertain the thoughts of not working because i want to spend more time with my girl who is almost 6 months now. i went back to work when she was 9 weeks old and my colleagues who have been covering me are all overworked. i didn't want to be a burden to them and despite not wanting to leave my baby, i have no choice but to go back.
my husband could probably cover all of our living expenses if i quit BUT same as everyone we have to relook at our standard of living. because i have always been financially independent (i pay my own and half of the family's expenses, my husband pays his own and half the expenses plus the car), he said he can absorb all of our living costs but i don't want to not have options for my baby next time when she grows up. things like choosing a better school for her (say private childcare or better/ overseas education), or say extra curriculum classes like ballet, music, etc.. i am not saying i want to put her through all these class, but if she wants to take them next time she is older, we want to be able to provide for her if she has the interest.
that thought has been with me since she's born, but recently i decided it's much better for me to continue working so we can prepare for her future.