Quotes, advice, songs?

My husband and I have been trying for a kid. He has 2 from a previous relationship. And I just feel like I don’t have that bond with him. That his ex has a part of him I don’t. I feel like a failure. I feel less of a woman. I’m broken and sad. I’m more sad the weeks I’m supposed to ovulate and when I menstruate. Why can’t I give him a baby? Why can’t I have something I’ve wanted since a little girl?