Nearly everything I have read about breastfeeding suggests that nursing mothers lose weight. This frustrates me. She is a Board Certified Lactation Consultant, as well as a retired La Leche League Leader.
Many mothers do find it easier to lose weight while breastfeeding than at any other time.
Unfortunately, this is not true for all nursing moms, as you have found out. Though most women do lose weight gradually during lactation, it was noted that one study showed that 22 percent of women actually experienced weight gain during lactation. Older mothers retained more weight than younger moms. There were larger variations in weight gains and loses, but the bottom line was that breastfeeding alone does not guarantee weight loss. It is frustrating not be to able to lose weight as you expected.