Radio star Sian Welby found herself in a pickle when she was stuck in a horrendous traffic jam that lasted over three hours - and the pregnant presenter found herself in an awkward predicament when she had to relieve herself at the side of the road. Expecting her baby within weeks, Sian had no option but to make a dash for it behind some roadside foliage. What was supposed to be a quick comfort break turned out to be painfully hilarious when poor Sian chose a bush swarming with nettles.The funny episode, caught on tape, shows the 37-week pregnant star hightailing away from the stingy shrubbery towards a more forgiving location.