I had the copper coil fitted last November. Had a period after that then had it checked in jan , all in place. My periods are probably all over the place because I've been breastfeeding and was on cerezette before the coil so had no periods. I now think I'm late and my boobs have been tingling like mad the last week and a bit. I'm terrified its failed us as now really isn't a good time. I'm still bfeeding 18 mo . I know the answer would be a test but I can't access one at the moment. Any reassurance there that this is normal :-/