Depends on where you live, the need for childbirth educators, and what you can charge per couple. In my area, there is a need, and a large population of people who are looking for classes. In the last three years I have typically run two series a month, with three or four couples per series. Saying it's just three couples per series, that's $1800 per month. Can you make a living on that where you are? In the last year, I have actually averaged more like $2400 a month. That, without our mortgage, let us scrape by. Of course, I live in the most depressed economy in the country, so living here is pretty cheap!