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23 years
Thanks. I took a fifth test this morning which was clearly negative.If I had my period March 12th took Plan B 17th, got my period March 21, when am I going to expect it next? Yesterday?
May 3, 2014

Dr. Rania Mousa General Medicine
So you took plan B in the first week of your cycle and for that your had your period 9 days after the previous one ,which is considered a short period .now if you had your period on 21 march then depending how long is your normal cycle is ,the coming period will be and also it depends is your cycle regular usually or not
however if your normal cycle is 28-30 days regular every month then your coming period has a delay of 2 weeks (this month you don't take plan b )
if you are not pregnant then there might be other cause like stress for example ,relax have good diet drink well to balance your body ,you can exercise too ,you may have your period again ,it may be because the passed period was too short (i mean if your period comes 12 march then it must had come without plan b at 12 april then 12 may =this interval of your normal 2 cycles )
so balance your routine ,relax ,sleep well exercise ,your period might come inthe coming week if no consider seeing your doctor for further tests and if no pregnancy giving a medicine to bring on period .
remember that plan b medicine is an emergency contraception that is not a substitute of the known contraception ,plan b has side effects and it can cause period irregularities
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