XP: "Do's" and "Don'ts" according to your doc...Help a new BFP-er out :)

Jessie's Matron of Honor

Hey y'all. I am excited to be cautiously joining you here in January 2012 Moms. I posted this in First Tri but haven't gotten much of a response; so, I didn't know if you ladies could be of more help:

I have a DS who is 19 months old and we are expecting our second, who we found out about after I got my BFP last Friday.  We could not be more excited!!!

Obviously, I am still very early in my pregnancy (5 weeks-ish), and I don't go for my u/s until May 31st. Even though I have had a successful pregnancy before, I cannot remember the "rules" (i.e., what not/to eat; if it's okay if I carry my 27-ish lb. DS; etc.).

That being said, would y'all mind sharing what "do's" and "don'ts" you have learned from your OB/GYN up until this point? Thanks everyone.