You can only obtain legitimate work from home positions from brick and mortar companies. You want to send your resume out to companies hiring for positions you are qualified for, but include in your resume that you have a home office and you wish to work remotely. Include how you have your home office set up and what equipment you already have in order for you to perform your job. These jobs are just going to advertised as jobs, they would not promote them as work at home because they would hear from too many unqualified people.
Spend some time talking to others who have gone before you....what other housewives are raising a child and managing a home business. What interests you? Home cleaning, concierge service, child care, tutoring, marketing, product sales, etc. Hit the library for What Color is Your Parachute, or review this website: http://www.entrepreneur.com/. some of the easiest home-based businesses involve multilevel marketing. Mary-Kay, Amway, Avon, Team National - take the time to look at them and see what interests you....Good luck, Bill