Sweet, firstly breathe!
You haven't abused him in anyway honey. It was an accident and he's going to have plenty of those during his lifetime! Some there will be times where you could have done more to stop things happening, some where there is nothing you could have done!
The other week I was carrying Reiss in his bouncer that has no straps. He was laid back in it and I was moving him to another part of the room, as I picked him up my hair fell forward and as I flicked it back, Reiss fell out of this chair onto our wooden floor on his head. I cried and cried as that was CAUSED by me! Reiss luckily more slid across the floor rather than landed straight onto his head, but he cried through shock mainly I think. So if you're a crap mum, I'm doubly one!!!!
We can share the 'careless' mum award this week, but not the 'bad' mum award ok?!
Hugs to you babesxx