Genetic results after D&C

I just received my results after my D&C from genetic testing on my baby who’s heart stopped beating at 11 weeks and he was a normal male. I’m so frustrated and sad that this does not give us any answers. I was on progesterone and blood thinners the entire pregnancy. My last D&C that was a blighted ovum also came back healthy male. I just wish I knew why I really lost them!? Anyone else have genetic results come back normal and then go on to have a healthy baby next pregnancy??