Well, if you listen to an acquaintance of mine, women who have too many unnecessary scans during pregnancy are more likely to have a left handed baby.....hmm.
This was actually in some literature I was given by my u/s place many years ago when I had kids i.e. there was a chance of this being increased due to scans.
Given I had a left hander with a 'normal' number of scans (3 - dating, 11 week and 20 week) and a right hander with a lot of scans (around 15 due to birth defects being detected and constant monitoring required) I'm not sure if there is anything to it.
ETA - both parents right handed.
Edited by Mumsyto2, 20 November 2012 - 11:34 AM.