Oh wow really? Well, I'm not getting quite enough to express yet lol, but someone said don't express during pregnancy because apparently (according to them ) it can cause a miscarriage or early labour or something... I think they said something about it causing contractions, which I have heard (like the theory behind breastfeeding to help birth the placenta), so I was going to ask my midwife but since you brought it up I might as well ask..... Yes or no to expressing (when I have enough lol) while pregnant???