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in how many days should period start after postinor?

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i had unprotected sex 7 may and i took Postinor next morning. in how many days should period start. my stomach some times hurt a little, like before period coming. last period i had in 23 April.

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replied May 17th, 2014
Birth Control Answer A47271
Welcome to ehealthforum,
If you were during your fertile days at time of your sexual contact, and if pre-cum has come in contact with vagina, chances of pregnancy are possible, but the ECP taken should have worked in preventing pregnancy if you have taken it with within 24-48 hours of your unprotected sexual contact (provided you were not sexually active after taking the ECP). Look out for development of any other new symptoms if pregnancy is suspected. If pregnancy is suspected, or if you miss your periods, or if you have abnormal periods, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). If pregnancy gets ruled out, further evaluation would be done to look of underlying cause for the missed periods that you describe. Treatment as appropriate (based on examination results and evaluation findings) would be started to help you regulate your periods. If pregnancy gets ruled out, and if you are not ready for pregnancy, but intend to remain sexually active, you should consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods). Be regular with birth control use as instructed. Avoid having unprotected sexual contact if not ready for pregnancy, and avoid repeat use of ECP. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet and lifestyle.
Take care.

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