I have been breastfeeding and on the mini pill , son is 13 months. This month, I ve had two bleeding episodes that were close to a period, and today I ve started spotting again, darker brown. I went 4 days without breastfeeding early in the month (on vacation without baby), which was immediately followed by the first period . Son breastfeeds periodically through the day, but milk supply is very low. Why am I spotting so much?