It’s been a month..

Today on the 12th it’s been a month since I had my miscarriage and my period returned was so emotional all day. All my life I had no issues with anything my period was never late never early always right on the dot. I luckily got pregnant on the first try and at 7 week ultrasound my baby didn’t have a heart beat and it stopped growing at 6 weeks. I can’t help but think where did I go wrong and what happened this was my first pregnancy. I just can’t think straight I’m traumatized. Does it get better? Please help me I think I’m going crazy. My husband is super good to me he’s trying really hard too and I just think I’m a bitch to him.