I had the marena coil fitted when my LB was 8 weeks, due to me breastfeeding I didn't have any periods. Now my LB is 10months and I stopped feeding about a month ago but I have come on a very heavy period and just wanted to know if this is normal? A friend of mine has gone through the same and after 4 months of periods has found out her IDU is missing. Please help as it's playing on my mind and there's no one to talk to till tomorrow.