Hi Everyone!
I have seen so many threads on this subject so thought id just post my experience. I had a couple of really really hot baths before i was aware this was an issue and was absolutely petrified I had done harm to my baby. I literally hardly slept the week before the 12 week scan. It turned out just fine but what i will say is for peace of mind i now have them under 40 degrees (which is not nearly as nice as I love hot baths!) but its worth it to just not worry. :)