Thanks for making this a topic again - it's one that definitely deserves a good deal of attention.
I agree with the tactical advice that has been given thus far but I would like to stress that you (or anyone in a similar situation) do not need to apologize for the decisions you've made.
Part of what I love about working with applicants in your shoes is that they are often the most driven, most passionate people, people who know what is truly important to them. They are also some of the most committed students, students who have learned how to juggle many balls and many roles, and who know exactly why it is that they are pursuing their MBAs. Fortunately, I believe that admissions committees also know this.
The key to your application will come down to your essays and the ways in which you tell your stories, both those from your previous professional life and those from your life as a caregiver. If you think about it, running a household is much like running a small business. And I'm guessing your small child has given you some of the best management lessons you'll ever learn!
In short, own your experiences -- all of them -- and be proud of them. Your presence will bring a richness to the MBA classroom. Do not be intimidated by the application process.
Please utilize the link below if you are interested in a free consultation with regard to your story and, in the meantime, best of luck.
Sincerely,
MBA Prep School