With DS1 i lost 5kg first trimester and put on a total of 12kgs and with DS2 i lost 3kgs first trimester and put on a total of 12kgs - thats from first weigh in so prior to losing anything. This pregnancy i put on 2kg first trimester... the eating constantly kept the nausea somewhat at bay I'm definately into a better eating pattern now i'm past 14 weeks and hopefully only gain around the 12kgs again.