When Will This Stop????

A little bit TMI but oh well.  When Ethan turned 12 months old, we cut down to just one nursing session a day.  Aunt Flo reared her ugly head again around that time.  Since that day two months ago, she has returned every 1.5-2 weeks.  That's 4 freaking periods in 2 months.  This is ridiculous!  I realize it takes awhile for your body to regulate once breastfeeding is stopped but come on!!!  I'll be calling the doc tomorrow.