A member asked:

Took plan b, bled 3-4 day a week after. haven't had my period since then (it's been 6 weeks) when should my cycle return to normal?(not preg. neg hpt)

A doctor has provided 1 answer

Hormonal imbalance: Plan B has high content of hormones and may have altered your hormonal balance.Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx

Answered 4/1/2015

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