I stopped my birth control the 17th of Feb, and my period before that was the 8th of Feb, I'm not due to start my period again until the 6th of March, but today I've had some pink/brown bleeding that I'm sure is the start of my period. My question is, should I count my cycle as 28 days, or wait til next month and recount incase my period is off due to coming off the birth control? My cycles have always been 28-30 days and never as short as 20, so I'm not sure when I'll ovulate! Thanks in advance!