I feel a bit silly even asking this question, but just to put my mind at rest... I'm 33.5 weeks pregnant and going to the beach today and even though it is not a very nice day (it may well be raining) I am determined to have my annual British seaside swim. I mentioned this weekend plan excitedly to a couple of people at work who were horrified and said 'but you're pregnant - you can't swim in cold water on a cold day!'. They're mad, right? It won't be that cold - I'm hardly going to get hypothermia so I can't possibly harm myself or baby, right?