08-10-2011, 21:26 
	
	
	
		Marcy, I have read varying suggestions on when to take PM.  Some sources say to start on the first day of your period & continue for 15 days.  Other sources say to start on the last day of your period.  I am going to start taking PM in November, and I'll be taking it starting on the 1st day of my period.  I wish I had more information or experience to share about it, but not yet...
	
	
	
	

