I am one of those woman who say it is easier to birth a big baby. Dion was 4625 gms ( 10 pd 4) and he was easier to push out than the twins 2110, 2115 ( 4 pd 10, 4 pd 11) as the contractions are the uterus squeezing, its hard for it to squeeze a little parcel, whereas the pushing sensation was definite with Dion,as the uterus had something to contract around, KWIM?? I was 10 pd 5 and my mum delivered me in 2 hrs, no tearing etc.