I am very sorry for your loss. I understand how you feel, I lost my last pregnancy, which was a surprise. I'd not really been completely over the shock when I lost it at 10 weeks, and partially blamed myself, as well as the external factors that had me not prepared to fall pregnant in the first place.
Of course it wasn't my fault, as it isn't yours.
Hugs and prayers to you and your family. I hope you are finding your peace.