Hi Kimber,
I was wondering the same thing. I was feeling so uncomfortably hot and the sea looked really inviting, so I went for a dip. It was about 65F at the time (though now seems to have warmed up to 70F). I felt so guilty afterwards, worried that I'd hurt the baby, I did lots of internet research and it seems there isn't too much to worry about. As long as you don't stay in the water for ages and cool your core temperature down too much, you should be fine. I think the shock of getting into really cold water can cause contractions, but I doubt 70 F is cold enough for that. I also read that after your milk comes in, cold water can lead to clogged ducts/ breast infection. There were also some suggestions that sitting around in a wet swimsuit for to long could lead to UTI. So, a few things to think about and weigh up the pros and cons. Personally, I plan to continue swimming anyway, as I figure the benefits outweigh the potential drawbacks.
