I asked my dr about this, but I'm breastfeeding too, so his answer was - no one knows. LOL, I'm only feeding the baby like 2-3 (sometimes)/day, as he's almost a year, so I would think that I would have a period again - but not sure? I'd be interested to hear what others think too. Around the time of the month that I use to get my period, I got some cramping, and felt like it was coming around, but no bleeding. The Mirena is now out for me for about 4 weeks. Good luck!