Although it's a good idea to reach a healthy weight before becoming pregnant, it is definitely not a good idea to lose weight once you do become pregnant. All women, even those who are overweight, need to gain weight during pregnancy, in order to ensure the health of their baby. The Institute of Medicine (IOM) suggests that women should gain:
* 28 to 40 lbs if they are underweight
* 25 to 35 lbs if they are normal weigh
* 15 to 25 lbs if they are overweight
* 11 to 20 lbs if they are obese
Although people may talk about "eating for two," you shouldn't double your calorie intake. IOM says on average, women need an extra 200-300 calories a day. You should talk about this issue with your doctor or midwife.