Hello
Normal menstrual cycle is of 28 days.
In it +/- of 1 week (21-35 ) is considered as normal.
2 periods in month is not common & it may be because of many underlying causes.
First go for USG abdomen & pelvis .
Then for further guidance and treatment u can consult me through following link
http://prac.to/drdevikapatel
Answered2018-03-31 13:04:35
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