I've had a quiet day with nothing much to do, hence I've been lazing around the flat examining my body. Found some stretch marks on both thighs, which I don't think I've noticed before. They're pale, silvery and flat. Not very noticeable. I can't figure out if they're old (from puberty) or new (from pregnancy). I always thought new stretch marks would be pinker - am I right? There's nothing on my bump yet.