I'm a stay at home mom of 4 and I'm a blogger. I'm brand new to blogging and love it so far. While I do expect to make some money, I am fortunate in that my husband makes enough for us so I am doing it mostly to help other new moms since that is what I know and am passionate about. BTW-I hear that is the key to successful blogging-blog about what you know and are passionate about.
Anyways, happy to help if you have any questions about blogging or being a mom.