I was 105.5 before falling preg i'm 5"7, and at almost 28 weeks i am now 112.5. a couple of weeks ago i got up to 116 but then started getting very violent reactions to greasy fatty food. I have since had my gall bladder checked and got the all clear but have made an effort to cook nutricious weight watchers meals for the past 2 weeks with no take away and both DH and i have lost a few kilos.. i am very happy cos if i had gotten up to 120 i wouldn't have been able to go to my hospital of choice. As someone who was only a size 10-12 2 years ago and put on 35 kilos in that short period of time, i was massively stressed. As long as you are eating healthy you will be fine even if you get up around 100kg.