HAve had for the last 5 days a nagging cramping pain in my lower abdomen and feels like its in my back too. Am ttc dc#2 and think it is too early for implantation pains. Have had some loose bowel movements and was sick this morning. Today the pain ahas been constant rather than coming and going as other days. Did have the same pains in lead upto period last month but not as painful. have taken 2 paracetamol, which has taken the edge off it. HAd a smear test taken last wed. Am worrying as have stupidly been searching the internet and am wondering if it could be pid. Anyone have experiences of the pain they can share?