The primary mechanism of emergency contraception is delaying ovulation. There may be temporary disruption of menstrual cycle. This can manifest as early or late periods, spotting or breakthrough bleeding. Menstruation usually occurs on an average about 14 days after ovulation. So delayed ovulation may result in delayed periods. Suppression of ovulation may cause anovulatory bleeding which manifests as early period. Do write to us again with more queries.
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