18 y/o miscarriage w/ first pregnancy

I miscarried when I was a day away from being 6 weeks. 
I'm devastated, and I feel like I have no one to go to at the moment. 
I told my mom when I first started bleeding and she said that God does things sometimes that I may not understand but it's all for the best in the end. 
She said that maybe because the baby's father wasn't in the picture and I'm still young and have many years a head of me to start planning on having a child. 
Although my mom might be right, it still doesn't take away the pain of knowing that I lost my child, and although my baby wasn't very big yet I still feel empty if anyone understands what I mean by that. 
I cried for hours when I saw that I was bleeding, I sat on my bathroom floor and just cried. 
My moms been trying to help me stay busy and keep me occupied, we're redecorating our living room and dining room, although I can't help but think about it, and no matter how much my mom tries to reassure me and tell me that it's not my fault and it's nothing that I did wrong, I can't help but think of what I could have done differently and maybe I'd still have my baby.