was i going to do from a professional perspective and also from a personal perspective. reporter: pwc aplows employees to take time to raise children or care for aging parents and come back to their jobs. the reason pwc implemented the program was we were seeing a number of our women who were leaving the work force because of a life event. reporter: big companies are offering flexibility but many women have found that they can balance it better working for themselves. we re seeing a huge trend what have they call mom-preneurs. moms are saying the heck with the rat race, i m going to start my open company, often targeting niches corporate america is ignoring. reporter: recent estimates say by the year 2020 the gender gap in earnings will narrow, women will graduate college at a higher rate than men and they ll be a dominant force in health, education and service sectors.