I think I'm starting to swell up. I'm only 21 weeks, is it normal at this stage?? My feet are looking quite "full" - my feet are normally quite slim (hard to explain) and boney but they look slightly fat - my sis just spotted them after I took my slippers off, and she said they are looking quite different... I don't even remember how my feet looked pre pregnancy! I don't get to walk or be active that often, maybe a couple of times a week I manage to get out the house to really have a good walk around. If I AM swelling up, what can I do to avoid it?