When I left work when I had my daughter, I had to make a decision on whether or not to go back. What helped me a lot was calculating how much I was making versus my work expenses. If you decide to do this, the answer may surprise you. Here's some things you can include in your expenses:
-day care
-eating out
-dry cleaning (if you have to dress nice for your job)
-gas to and from work
-anything else you spend money on for work!
We found out I'd be making a whopping $70/month after expenses, and it was SO not worth it to spend that long away from my daughter. Also, could your budget take losing that income, if you do bring home much more than your expenses? Some families choose to make this sacrifice and live simpler in order to allow Mom to stay home.
After 5 years of staying at home, I started teaching music lessons from home to earn extra money. I'm still not working out of the home, so I don't have any expenses other than a babysitter when my husband has to work late. Choosing something you can do from home to make money can be a compromise that will lighten the burden of quitting altogether. I also run an Ignite business, switching electric accounts to Stream energy. Something direct-selling/network marketing can be fun, or you can find your niche elsewhere based on your talents or the needs of your community.
I hope you can make your decision and have a sense of peace about it! Let us know what you decide!