Need some help

Hi everyone, My family and I have been through so much, I just need to talk to someone who understands our pain and suffering. My husband and I did fertility for about 4 years and we finally got pregnant in March 2005 and then in May 2005 we miscarried. That was so devastating for us but we continued trying to get pregnant and after 4 times of no success, we decided to adopt. Our first adoption the birth mother changed her mind 11 days to her supposed c-section. We were again devastated considering we had her diaper bag packed and waiting by the door. This birth mother scamed us she was taking our money and buying baby things all along. She told us the c-section was Sept. 2, 2006 when it was really Aug. 25, 2006. We paid for her to get into a place. We paid all utilities including food and rent. I didnt think I was gonna get over this loss, my husband and I decided to get away for a couple of days while we were gone we got a phone call from my husband's uncle who told us his girlfriend was pregnant and they wanted us to adopt her. We were shocked maybe this was for real. Both of the birth parents are crack addicts. Well my daughter was born November 19, 2006 I was there to see her born and have had her ever since. Well because my husband's uncle is the father we have done a family adoption. Well since the birth of our daughter my husband's uncle and the birth mother have split up. Now she is trying to take the baby from us. We just are so lost and devastated. She is saying that my husband's uncle is not the father and what we didnt know is there is a chance he isnt. He was in jail for 82 days, he went into jail January 25, 2006. They both told us his uncle was the father. We knew nothing different. My lawyer is saying if my husband's uncle is not the father we have to give her back, even though the birth mother is not a fit mother this was her 4th child and the state has taken the other 3. Can someone give me advice on what to do and how to cope with everything?