April 5, 2011 5:34 pm 1 Mom, Multiple Dads a Growing Trend A new study found that 20-percent of all mothers in the U.S. have a child with more than one man. iVillage.com’s Kelly Wallace discuses the trend. US & World Videos 3:04 PurpleStride event in Philly raises money for those battling pancreatic cancer 3:27 ‘Take a Breather' and run to help battle against cystic fibrosis 1:49 How much time do you spend on your phone each week? Keith Jones, Erin Coleman talk screen time 2:52 Join the fight for ovarian cancer treatment and research at the Sandy Sprint 3:13 Movement, memory and Parkinson's awareness