After  the bleeding you get of plan b i have to count a month to my period? The thing is that i took (may 21 plan b) plan b 3 days after my period(may 14 period)and then y had a brown discharge 7 days after plan b. this brown discharge was of 5 days (may 27 to 31  brown discharge)  Now i have to count one month to my period from that brown discharge or i will have my period on the time i expected? And another thing!! Do i have to worry about pregnancy even if i had this brown discharge?! I am soo worried  and helpful answer! I would be happy.