Please reassure her first. Panic and stress by themselves can delay a period by a week or more, and this is very common at her age. The right way to know for sure is not to guess. If it has been more than 7 days past her expected period, take a home
pregnancy test with the first morning urine. These are around 99% accurate at that stage, and a negative result almost always means she is not
pregnant.
Next Steps
Do the home
pregnancy test with first morning urine on day 7 of the delay. If unprotected intercourse was recent and no emergency contraception was taken within 72 hours, take the test now and repeat after a week if the first is negative. If she is confirmed not
pregnant but the period is still delayed beyond 6 weeks, a gynaecologist can identify the underlying cause.
Health Tips
Please avoid trying period-inducing pills without a prescription. They can cause harm and are not the safe shortcut they seem to be.