RE: Is it safe to use the pill (Micronor) while breastfeeding?
I've been using it since my son was 6-7 weeks (he's now 6 1/2 months), and have been breastfeeding without any problems. He's been healthy in practically every aspect, and I haven't noticed any strange side effects thus far. FYIW, my period hasn't resumed yet, but I've opted to keep taking it through the first year since we don't want to risk getting pregnant again too early.
Regarding impact on supply, I found that work and stress had a much greater impact on my milk supply than the pill.
Mom to DS 8, DD 5 and a Greyhound Princess