I was a larger lady when we first got pregnant with Tim. 113kgs
During pregnancy one I got up to 136kgs so gained 23kgs, I was huge! (but i did eat crap and whatever I liked, took eating for two to heart when I didnt have too) Paid for it after.
After the birth I lost 12kgs within days and still had a heap of weight due to fluid retention which disappeared within two weeks. But still have the last 5kgs to shift so I was at 113kgs again.
This pregnancy, even though morning sickness was tripley as bad, I lost 7kgs with it. So going into the second trimester I was 2 kgs less than when we feel pregnant the first time.
I get weighed again at midwife appt on 3rd of June. So should be interesting to see what I am then.
To be perfectly honest you should exercise everyday for 30 mins and eat healthy during your pregnancy and not be concentrating on weight gain, this is the one time in your life, where it's beautiful and sexy to be big, so enjoy it. Just don't do stupid things like eat crap.