香港人D baby is really getting heavier and heavier. 不要過份進補. One of my friend ate too much bird's nest and other good stuff during pregnancy. It ended up that her first baby weighs 10 lbs and Caesarean is a must.
I think for 2nd baby, normally 剪會陰 is not necessary. But for 1st baby,剪會陰 maybe necessary if you need 產夾or吸盤.
Your doctor must be willing not to 剪會陰 too. I suspect that doctors like 剪會陰 because it is easier to stitch a straight line then 自然裂開, and also because not all woman can accept the concept of 自然裂開, it sounds horrible and the doctors don't want to scare away patients. (Sorry if I offended some good doctors or my guess is not well-grounded), but I had experienced my HK doctor urging me to Caesar, 仲同我講話驚我順產會生唔出! I think many mothers had been scared and agreed to Caesar in this way. 所以90% of her patients choose Caesarean instead of 順產.
My friends previous doctor even do not take patients who want normal delivery. My friend insisted normally delivery and she asked my friend to look for another doctor as all her patients Caesar!!! What kind of doctor she is!!