26 yrs old, 5'2 tall, 54kg. i started taking progyluton since last week of august -november 2011.my period was normal.i already stopped taking over a month ago.i was expecting my period last week of dec but unfortunately did'nt come. then my dermatologist advised me to take oratane for my acne, i started taking oratane since dec 28 til present.my question is: is there any conflict effect for me in taking progyluton and oratane? my period ddnt come after i stopped taking progyluton (1 month)whats the main reason? thanks.