Quoting Lizplustwo:" It shouldn't have any effect on your milk supply, if that's what your worried about, because there's ... [snip!] ... every day, though - even more so than the regular pill. I'm getting Mirena put in so I don't have to worry about that, lol."
Quoting ☼ Mª mª:" I was worried about my supply lol! I asked the doc but since she said " It probably won't" I'm worried! ... [snip!] ... I'm worried! LO is going through a growth spurt and it's hard enough to keep up as is.. Can you get mirena while breastfeeding?"Yup. I didn't think so but I saw my midwife yesterday and she said Mirena (and Implanon) both are progestin-only, and only release small amounts of hormones.
Quoting Juliette:" the only problem I had was I got pregnant. Even taking it at the same exact time everyday. It didn't effect my supply and I never had a period (probably from breastfeeding though)"Yeah I'd say that's a slight problem