I carried on riding my bike up to and beyond my due date with the second cub - got into bother with one of my colleagues every time she realised that I'd ridden out to site. S'only about 4 miles, and flat as a pancake! Mind, this was when I was not doing a lot of miles, utility cycing only, on my old (about 12 years old at the time!) Halfrauds gaspipe special that my dad gave me when he got it free on a BOGOF deal. Didn't ride to the hospital though - apart from anything else I was not prepared to ride home after giving birth, and how would I have got the bike back? Plus the cycle parking at YDH isn't brilliant, and is miles away from the maternity department.