if you try to lose weight suddenly, your body may release toxins that can pass to baby... otherwise healthy weight loss will not affect baby..

thank u mam..it didn't effect my baby's health?

You can start exercising. Start with a gentle walking program and slowly increase intensity and add exercises. Do not crash diet but ensure you eat healthy foods which are low in fats and sugars. High protein complex carbs and lots of fruits and veggies.