How do I convince Husband to adopt?

My chances of conceiving are slim even with IVF. I have at least stage 3 endometriosis and low ovarian reserve. To get the surgery for endo, I may severely damage my reserve to a point where conceiving won't be possible. My husband refuses to adopt. He doesn't think he could love an adopted child like his own flesh and blood. He also is stuck on having a genetic heir. Are there any resources that may make him more accepting of adoption? Any stories? Experiences online? The pressure to conceive is stressing me out and putting a lot of pressure on our relationship. I wish he could just be more open to adoption.