I thought I would share with you my childerns sizes.

5pd 7oz Boy
7pd 5oz Boy
8pd 3oz Girl
6pd 12oz Girl - I was expecting that my babies were going to get bigger everytime I had one due to the trend I seemed to be getting, I was thinking how big was this one going to end up, and to my surprise my youngest was the second smallest. I also agree that genetics plays a role, as my first takes after my side with his size, my grandfather and my uncle on my mothers side were very petite and my brother isnt real tall either. My fathers side were taller, and my DH's side are similar. Yet it is also amazing on how all of my kids have characteristics from my side and my DH's side of the family. Even my youngest although she looks more like my DH's side, I have an old photo of my Nanna who was around 3yrs when it was taken and she has the most cranky look on her face. My youngest gives out exactly the same cranky look, and yet they look very similar too. My DD thought it actually was her. lol.
Try not to worry too much hun, please let us know how everything goes for you. Hugs