Thanks to everyone for your advice
I know I had mine with DS1 because he was big... and then with the others because DS1 was big (thanks DS1!!! lol)
My other sis had it with her 3 boys too.
My sis isn't too worried and now I'm not either... she isn't real big or showing any other signs of having GD so thats a good thing
29 days to go!!! Yay!