Come on in Eveadel, I waited until 14 weeks too but the second trimester starts at 13 weeks on this forum.
I've read that it's normal to put on 3/4 lbs in the first trimester so that sounds like perfectly normal with your weight gain Hayley.
I don't know what I weighed before I got pregnant so I'm not sure what my weight gain has been since the beginning as I never got weighed until gone 10 weeks.
It's amazing how normal you feel in the second trimester, it's fab.