Ultrasound

A

So I had my appointment this past week and i have been thinking about it all since. This is my 5th baby and my babies range 6lbs 9oz to my biggest being 7 lbs 6oz. Now I have been told that baby might be on the small size because he only has 2 vessels instead of 3 in his umbilical cord. My doctor said that it’s common but really how common is it because I have never once heard of it and all my friends have 4-5 kids each and I know lots of other moms from my mom and tots group that I have been going to for over 7 years now. So I’m checking outside of my circle. I had gestational with my last and he wasn’t even my biggest, and I have gestational diabetes with this one as well