I've gained 15lbs and I'm 22 weeks pregnant. according to my midwives I am well within the range of normal and they are very happy. But just 15lbs and my body isn't happy. Aches and pains that had gone away with weigh loss are back... my feet hurt again and my knees sound crunchy when I go up the stairs. It really surprised me that this relatively small weight gain feels like such a set back for my body. I've taken up swimming 3 nights a week. It works every muscle in my body, no impact and I can do it after my toddler goes to bed. Its a nice relaxing treat for myself. I can't wait til I can enjoy a nice hot sauna after a swim again.... ahhhhh.