I gave birth in July 2007 and nursed my son until the middle of September 2008. Unlike after I gave birth to my daughter 5 years ago, I did not resume my menstrual cycles as I continued to nurse my son and would only have a few days of spotting.
Now, it has been 2 months since I totally weaned my son, and I no longer even have spotting once a month. What could be the reason my cycles haven't resumed?