Thank you for your query at AskTheDoctor.com
I understand your concern.
If there was no sexual activity or intercourse, then there is nothing to be worried about. Young girls may miss their period for 1-2 cycles due to a variety of causes such as:
3) Polycystic Ovarian Syndrome
4) Hormonal Imbalance
If she misses her period for one more cycle, then she needs to be examined by a gynecologist who can get the detailed investigations done. In most cases, progesterone tablets are given for 2 weeks which induces the period. But let me assure you, delayed period ( 1-2 months ) at times can be present normally without any hormonal disorder.
Hope this was helpful.
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