Replies to 'I Want to Adopt'

My husband and I have been married for three years. We have three beautiful girls. Two are from my former marriage and the other from his. We were unable to have children togerther due to female medical problems I had.  We want another baby so bad I cry everynight begging God to somehow to send me one. We have looked into trying to adopt, but we cannot afford to pay 20,000-30,000. If I had it I would do it tommorow, but I cant.  We have a wonderful family with lots of love and big hearts just waiting for a child. I just wonder why and how they can charge that kind of money for a child. There are so many children in this world needing homes and people who want to love them cant because of the money. I just dont know how to make my heart let go of wanting a child.