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Period delay: symptoms, causes & treatment

Prescription tablets can safely postpone a period for holidays, exams or events — if started at the right time in your cycle.

Editorial information by Kaiser Khan. Not clinically reviewed.

Symptoms

  • Not a disease — a planned delay request
  • Timing depends on cycle day when starting
  • Breakthrough bleeding possible if started late

Why it happens

Natural progesterone withdrawal triggers a period. Delay tablets mimic pregnancy hormones to postpone shedding of the womb lining.

Treatment

Prescription progesterone tablets taken 3 days before your period is due can delay bleeding for up to 17 days.

Self-care that helps

Know your usual cycle length; start on time; expect a withdrawal bleed when you stop; not suitable for everyone.

When to get help

Missed periods when not delaying, pregnancy possibility, or heavy bleeding after stopping — seek advice.

See our period delay support →