Hi Fez1976, I had the Mirena fitted when I was 34 for contraception and it reduced my periods to nothing, it was awesome! I'm now 53 and bleeding heavily, so I'm getting the coil fitted again. I wasctold by my consultant that the bleeded would stop immediately and maybe 100pc. If I was you, I would mention it to my Dr just to make sure that everything is OK, just my thoughts, as you're so anemic.