Secondary Infertility

I have a daughter who is almost 10. We found out back in 2015 that I was infertile. But since my daughter was about 2 she has always asked for a little brother or sister , I know heartbreak is the worst way!! We had a miscarriage back in 2017, we didn’t tell our daughter. I didn’t want her to go through the hurt with us. It isn’t fair to her. We now she is back to asking about a sibling and she just came out of her room sat on the couch next to me and goes “ Mom , will I ever have a sister or brother” y’all when I tell you my heart shattered , I am not lying. Currently sitting in my room crying because I can not give her nor my husband what they want!! I know I should not place blame on myself. And my husband has always been super supportive throughout all of this. He is seriously my rock. I just always wonder what if’s and what could of been!