Hi,
I am a personal trainer, weight loss coach and nutritional consultant and I work primarily with pg and postpartum moms with all of the above.
I just turned 30 myself and I just had baby #3 5 weeks ago.
What I have found and what I recommend to my clients is that having a soy shake in the morning, plus good snacks, eating lots of veggies and a protein source for lunch and dinner, and having a soy shake again as a snack during the day does wonders. I recommend the Herbalife SHAPEWORKS shakes and supplments.
Also, I have all my clients avoid the wicked 5 whites:
white potatoes
white rice
white pasta
white sugar
white flour (including white bread)
You can have SOME of the whole grain versions, but I have my clients keep it to a minimum because most of the women I work with are carbohydrate resistant (most Americans are to some degree).
I find that I can still lose weight and eat a 70% cocoa little chocolate bar (Mosser Roth from Aldi's is great) and a couple of ice breakers -sugar free - in a day.
Also eat foods that are anti-inflammatory: celery, green lettuce, omega 3 pharmaceutical grade fish oils
For a personal submission, I am nursing and am doing this myself for the 3rd time - I have lost 9 inches and 6 lbs in 3 weeks. (I am on the last 10 stubborn lbs - so that is pretty fast moving).
Also I recommend you take measurements rather than weighing. If you are losing CORRECTLY the inches will go fast, and the weight probably slower as you convert your fat into lean body mass (muscle weighs more than fat).
Here is the website I send my clients to look at programs:
www.herbal-nutrition.com/bonniewayne/
If you have questions you can email me - I also work with women with their "mummy tummys" - as I am certified in the TUPLER TECHNIQUE (one of only 2 people in the entire Chicago land area) Helps bring the stomach muscles together that separate during pregnancy. My waist size after baby #2 went from a 32 inch waist to a 25 inch waist in 5 months with the exercises (coupled with good nutrition).