When you're pregnant, your body releases a hormone to let your ligaments stretch so you can push out the baby. That's why so many women claim their feet grow when they are pregnant!

Check with a doctor as soon as you can. It might just be some simple inflammation and tendonitis, which means you'll have to modify workouts, but you don't want to injure your joints before finding out and then have to stop working out altogether. Swimming is always good and forgiving on the joints!

I've had knee surgery and more joint crap than I care to think about, but I can swim and bike now and my house is at the bottom of 65 stairs! Get it checked soon... it's like a toothache, it won't get better by ignoring it!