trigger***

I've been going through horrible anxiety attaxks lately,  and now I'm worried I have done harm to my baby,  I read that if you are in frequent stress--it increases your chance of stillbirth,  and that has terrified me!!! I'm so scared of having a stillbirth!! I'm so scared the cord is wrapped around his neck,  so many things that make me afraid!!! 
My question is do you know anyone who has had a stillbirth and know the reason behind it? I'm so scared something will go wrong I Just want august to be here already!! Sorry for the question!