HotI, I'm not sure what your reasons are for being nervous, but my girl was my biggest at 4.77kg (10lb 8oz) and she did no damage coming out, even though it was quick and she had her hand against her face. I put it down to it being the first time I was 'coached' during pushing, being directed and encouraged to slow down and breathe. If that's one of your concerns, maybe asking for guidance to pant rather than heave-ho (like I did with the boys) might be worth considering.

(The boys were 9lb 4oz and then 7lb 9oz and pretty different, the heavier being long and skinny and the lighter being short and fat. Babygirl was the first to go 'over' though, by 4 days. The boys were 1 or 2 days before EDD.)