When will my first period start?

Everybody starts at their own time.

  • There is no exact age — Many start between about 10 and 13. Before and after is also possible.
  • Puberty signs may happen first — Discharge, body hair, growing and breast or chest changes may happen before periods.
  • Be prepared, not worried — Keep a small period kit if you can.
  • You are not late or early — Bodies grow at different speeds.

Your first period does not have to be a surprise.

Quick answer

There is no exact age when everyone starts their first period.

Many people start between about 10 and 13, but before and after is also possible. Your body has its own timing.

Signs your first period may be coming

Your first period often starts after other puberty changes have already begun.

  • breast or chest changes
  • discharge in your underwear
  • pubic or underarm hair
  • a growth spurt
  • oily skin or spots
  • mood changes
  • cramps or tummy aches before bleeding starts

Discharge is often one sign that your body is getting closer to periods starting.

What might my first period look like?

Your first period may be a few spots of blood, light brown marks in your underwear, red or dark red blood, a small amount that lasts a day or two, or heavier than you expected.

Brown blood can happen, especially at the start or end of a period.

What if I start earlier or later than my friends?

That can happen. Bodies grow at different speeds. Starting before your friends does not mean something is wrong. Starting after your friends does not mean something is wrong either.

Can I be ready before it starts?

Yes. It can help to keep a small period kit in your bag, locker or bedroom. You might include period products, spare underwear, tissues, a small bag, and a note with who to ask for help.

When should I ask for help?

Tell a trusted adult or healthcare professional if you start bleeding very young and are worried, are much older than your friends and have not started, have very heavy bleeding, severe pain, faintness, or feel scared and need support.

Ask Luma

You could ask: “How do I know if my first period is coming?” or “What should I put in a period kit?”

Final reassurance

Your first period might feel like a big moment, but you do not have to handle it alone. Being prepared can help you feel calmer, and asking for help is completely okay.