Hi J.---From my experience working with a Naturopath who has her PhD in nutrition, I would say that it would be fine to eat some meat now and then. Dr. Pam advocates a 90% plant based/10% animal based diet. This suggestion is based on long term research such as The China Study by T Colin Campbell, Dr. Caldwell Esselstyn and Dr. Dean Ornish. At our house, we eat vegan/vegetarian probably 4 or 5 nights a week, and have animal protein the other 2 or 3. Often, that meat is in a casserole or a soup our stew.
Be sure that you are using a good quality source of meat---animal protein really should be organic, if at all possible. Organic meat is healthier because the animals eat healthier. For example, grass fed beef has an optimal ratio of omega 3 to omega 6 fatty acids, because they eat plants. Omega 6's come from grain, and while important for health, too much causes inflammaton in the body. That's why wild salmon is essential. They eat the small fish that eat the algae which gives us the rich source of omega 3's. Farm raised fish don't eat foods that give them omega 3's.
Dr. Pam does not think much of the Blood Type Diet, it is not based on long term research. I do know of people who say it makes a difference for them, however.
Be sure to eat lots of fruits and veggies, whole grains, legumes, nuts and seeds. You will get lots and lots of protein from these foods and then supplement with your casseroles and stews. And be sure to eat AT LEAST 9-13 servings of f&v, if not more. Being pregnant, your body is generating tons more free radicals. If that is hard to do, give me a call and I can help with strategies to increase your fruit and veggie intake. I look forward to talking with you soon.
Good luck! In health, D. ###-###-####