how much $$ is enough?!

My husband and I have been married for almost 2 years now. We both have baby fever BAD. I want to be a stay at home mom because that is my dream job ever since I was a little girl. My question is, I don't feel like we can afford a child on just my husbands income. I have moved from the west coast to midwest so his income seems so small compared to what is average in the west cost. Any ladies here from the Midwest able to enlighten me on what an acceptable income is here? 
Sorry for the novel. Thanks!