My fiance and i have a 9 month old son. We just found out in January that we are going to have another baby. I got pregnant with my son in September of 2007 and he was born on may 30, 2008. My due date was actually June 9, 2008. Me and my fiance broke up in mid july 2007 and got back together in mid August 2007. During the time we were broke up he had a one time fling with an ex girlfriend. She found out she was pregnant in october 2007 and i found out i was pregnant 3 days later.She started calling him and telling him that she was pregnant and thought it was his. This lasted about 3 months and then she stopped. She got with an ex boyfriend of hers that she had been with around the same time and started telling him that the baby was his. She wouldnt ever tell anyone her due date until april 2008 and she told everyone her due date was June 1, 2008. This guy had been raising her baby with her and now they have broken up and she is telling people the baby is my fiance's. She also met with another guy she had been with and told him that she thinks the baby is his. She will not have a dna test done. How would i go about getting a dna test done if the mother is unwilling. He wants to be there for the baby if it is his but he wants to know so that if its not then she cant keep saying that it is? help me please!?