I would not go on LAWL since you are expecting. Seriously. A breastfeeding mother is one thing, an expecting mother is something else.
You need to see your doctor, and speak with them about your concerns and get a plan from them, or a dietician.
Breastfeeding mothers who are trying to LOSE weight can do Red, which would be around 1800 calories a day, give or take.
You would want to be on at least 2000 calories a day at this time, more during your second adn third trimester.
Please see a dietician or nutritionist.
Start weight after baby #3: 233.9
Current weight: 143
90 pounds lost!