I'm normally a lurker, but I thought I'd share.
I am nearly 13 weeks and have already gained 10 lbs. I am a little stressed about it because I worry that I'm gaining too quickly.
Like you, I quit smoking as soon as I found out. For a while, I ate a lot of comfort foods (chocolate, macaroni and cheese) that really helped with the gain. And I know I snack a lot more than I used to. My doctor said to be careful, but that gaining a few extra lbs. is better than cigarettes. Still, I'm trying to get a handle on this now that I'm doing a little better without smoking.
I started out at 138, which is pretty much the most I can weight without being overweight.