How can I lose weight but still gain to keep the baby healthy?

Eat well. In pregnancy, weight loss is not recommended. For women of normal weight, 20-30lbs is recommended. If heavier, 15lbs is recommended. The most important thing is to remember to eat well, lots of fresh fruits/veggies, whole grains, lean proteins, avoid refined & processed food, & drink water. Eat small meals and it frequently rather than big meals. Walk every day and enjoy the journey.
25 pounds. Weight gain of 25 pounds will be healthy for baby once you reach that weight - tryto add walking and easy activity to stay healthy.