Today my 3 week old baby fell out of his pram which had the car seat attachment on.
We were at a fete in a field and my MIL was holding him. It started raining so she put him in his car seat and I said not to bother strapping him in and that we would just put the rain cover on and head back to the car.
She was pushing him, hit a pothole in the grass, the buggy tipped over and he fell out and landed face first on the grass.
I have never felt so sick in my whole life. I scooped him up immediately and he was crying his eyes out and had a little graze on his forehead. 
We took him straight to the St John's ambulance tent and they checked him over and said he was absolutely fine. They were telling me not to worry and that it was just an accident but I was shaking so badly.
I feel so guilty. I should have strapped him in. I can't get the image of him face down on the floor out of my head. I feel so sick. I'm meant to protect him. What a fucking idiot I am. I am so angry with myself.