What's a "normal" or average amount of weight to have gained by the time your 30 weeks pregnant? I have a pretty good rough idea of what I was when I fell pregnant (never weighed myself and the midwives etc didn't weight me either) and decided last night to weight myself...I've figured out pretty much what I've gained but not admitting to it till I know what's normal/avereage by the time your 30 weeks??