watching others get pregnant

I am super depressed lately and very discouraged. My husband and I have been trying for about 2 years now to get pregnant. I have 6 siblings and have over 20 nieces and nephews, of which some also have children now as well. We have been trying for over 2 years now and we had the excitement of finding out that we were pregnant finally this past September. and then 2 short weeks later found out we had lost the baby. I realize it happens and I know it is not my fault ...I get it but it still hurts. It crushed me. I felt like life just yanked the carpet right out from under me. I really want to have a baby and I think we would make such great parents. I find myself resenting other people for getting pregnant especially if they don't have the means to support the family they have now. I hate myself for that resentment and I know it isn't right but it just hurts. My husband has health issues and I am certainly not getting younger. I will be 35 this year. We will keep trying...I just don't know if maybe it's not meant to be for us. ~heartbroken