You can try Doula
Start-up costs: Doulas provide women with non-medical comfort in pregnancy and birth. The field isn't regulated, but DONA International is one of several organizations that provide certification. A doula workshop costs about $350; marketing, another $2,000 or so.
Annual income: up to $65,000, by combining birth doula and post-partum doula work.
Tip/Warning: Beware the unpredictability of the job, says Stefanie Antunes, president of Discover Birth and director of public relations for DONA International: "You may miss Christmas morning."