Hi! New and wanted to comment on the thread.
Here is my one piece of great advice: drop the cable bill. It is the most useless monthly bill that most people carry. I assume from the size of your phone bill that you have high speed internet?
Here is what we do: we subscribe to Netflix for $8.99/mo. In addition to the one movie per month that they send you in the mail, you also get unlimited internet streaming. There are a lot of kids shows and movies that your baby can watch on rainy days, not to mention a lot of stuff for you and your hubby as well. In addition, most networks and a large percentage of their primetime shows online. We made the switch when we moved to Columbus in February and frankly, I don't miss cable. The only show we weren't able to watch was American Idol and somehow I survived.
In addition, Netflix now has a little box that you can buy to attach to your TV and watch their unlimited internet movies through your television. It is a one time $99 purchase, which seems like a lot, but it works out to less than two cable bills when you think about it. We don't use that because we have a computer attached to our main TV but it is still a nice idea and I am thinking about getting one for other tvs in the house.
Other ways we save money are by couponing, hubby takes the bus (saves us a ton on gas and city parking), walking to the store when possible.. there are also a lot of at home jobs you can get.. real, legit ones, that would easily bring in as much as your part-time brick and mortar job without leaving the house. All things to think about!

Congrats on the baby and good luck! You can make it work!