My babies are getting bigger?

My great gran was a dutch woman, her first baby was 8 lbs. and she had seven more children after that, all progressively got bigger until her last, weighing in at a whopping 16 lbs!! Thank God she was a strong big Dutch woman otherwise she would've died, they didn't have c-sec's back then, she said she did not tear...and yes, the 16 lb. kid is HUGE as an adult, not fat, just HUGE...I pray to God I never have a child that large. I am on my 3rd my babies range from 8 1/2 to 10 lbs. not too bad though for me to handle. Good luck.