News out this weekend is that Marshevet Myers its pregnant and will be out for the season. While I wish her all the best , I can’t think of a worse time than an Olympic season.  World Championships come  often enough that if you miss one there’s another next year – or at worst in two years. But the Olympics only come once every four years  – half a lifetime in track and field. For the 27 year old Myers, who is due in October, her next opportunity at a global medal could be the 2013 World Championships in Moscow. If not, she’s looking at 2015 and the Beijing World…