So I have had the contraceptive implant for about 1 month now, this last week was my first period, not very heavy at all. However, last night I had really sharp belly cramps and felt loads of blood came out of me early hours this morning. I went to the toilet and found some big think greyish peice of skin, kind of looked a bit like a slug and as Big as my index finger. I haven't been to sleep since because I'm scared what it could be, Any help??