I had a copper coil put in last tuesday. All fine until wednesday afternoon when I got horrendous stomach cramps and could barely move. These eased off by friday afternoon. Bit of spotting to start with but I'm now bleeding heavily. I'm on my 3rd day of heavy bleeding and its heavier than the last two days. I dont think excessive but it's much heavier than I normally get when I have a period. Does this sound normal?