I had my last AF on 2/19 which got over 2/23. I've been testing opk since 4 days . All these days it was light , today morning I got a dark line almost as dark as control and I'm having ewcm too! However I tested opk again after work in evening and now it's hardly visible . Did I ovulate or no    If yes , do I BD today or do I do it after  a few days ? Glow says my fertile days are 3/5 to 3/11.please help !!