It is recommended that you gain between 25 - 30 lbs. However, if you are underweight, you may need to gain more and if overweight, less. Yes, too much weight gain is not good for the mom. Folks, send in your questions for Gwen Stern and Bonnie Berk. I had my baby six months ago, and I've been exercising regularly for about three months.
Nothing seems that different yet.
However, what you eat has more to do with weight gain than exercise when you are pregnant. I had over 50 pounds to lose after I had my third child and it took me about 9 months. Contrary to popular belief, breast feeding will also delay weight loss because of hormonal changes. An example is to inhale and when you exhale, pull your belly-button toward your spine. You can also include Kegels to strengthen the pelvic floor.