This is a great question for a dietitian or fitness instructor! Because I am neither, I would feel irresponsible giving you tips on how to achieve your pre-baby body, especially since I don't know anything about your eating habits, physical capabilities, BMI, or metabolism. I only know what works for me, and that doesn't always translate well to advice for people of varying figures and lifestyles. Definitely reach out to a trained health professional for direction, or take some initiative in the meantime by tracking tags like "fitness" "nutrition" or "fitspo" on Tumblr -- I get lots of great recipes and workout ideas from fellow bloggers! :)