My husband..

My husband has been talking about babies more and more recently. We've been trying for 3 years and have lost 4 angels. I feel like it's my fault that we haven't had a baby yet because he's healthy and I'm the one with issues.. He never blames me or anything but it's hard when he says "I can't wait to have a baby" or "I'm gonna do that with our kids someday" because I wanna give him a child already! I love that he wants one but it's also hard because we haven't succeeded yet :( idk I guess what I'm getting at is.. How do I cope? Is it my fault? Idk anymore :'(