Wow - I ate what ever I wanted throughout my pregnancy (even lunch meat a couple of times a week). I never had any problems with my urine tests or bloodwork.
I've never had a weight problem either. I think moderation is key. In my 38th week
my feet started swelling so I cut down of salty foods but it didn't help. My doctor
said some swelling in the 9th month was normal as long as my blood pressure was
fine. Try not to worriy so much about eating. Just enjoy your pregnancy, eat what you want in moderation, and take your pre-natal vitamins.