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Mifepristone is not sold without doctor`s prescription.And it should be administered in Doctor`s guidance to avoid complications.
You had sex during your fertile period.So there could be chances of pregnancy
.Please wait till your expected day of periods and see if you miss it.If you don’t, there can be no pregnancy.
I advise you to visit your Gynecologist directly and get tested.
If you need more information feel free to mail me.