Two periods a month on the mini-pill? Why it happens

Author: Aunt Vadge
Qualified Naturopath | BHSc(N)

Last reviewed: July 7, 2026

Hi Aunt Vadge,

I’ve been bleeding on and off from the start of August until now (9 October). I’m on a pill called Norgeston, which I started on 4 July, and I’m getting two periods most months. Help!

Sincerely,
Bleeding
UK

Dear Bleeding,

The thing to know first is that Norgeston is a progestogen-only pill – the ‘mini-pill’ – so it has no oestrogen in it, and you take it every single day with no sugar-pill week. That matters, because messy, unpredictable bleeding is far and away the most common side effect of the mini-pill, and it doesn’t mean anything’s gone wrong.

Oestrogen is the hormone that holds your uterine lining steady until period time. On a progestogen-only pill there’s none of it doing that job, so the lining tends to shed a bit here and a bit there instead of all at once – which shows up as ‘two periods a month’ or random spotting.

For most people this settles within the first three to six months as the body adjusts, and since you only started in July, you’re right in that window – it may well calm down on its own soon.

Two things help meanwhile: take it at the same time every day (the older mini-pills like Norgeston need that for reliable cover anyway, and steady timing makes for steadier bleeding), and keep half an eye on your iron, since frequent bleeding can quietly run it down.

Plenty of iron-rich food, and get your levels checked if you’re feeling wrung out.

If it’s still going strong after a few months, or it’s heavy and getting you down, see your doctor – they can move you to a different mini-pill, or to a combined pill with oestrogen in it (if that suits you), which usually gives much more predictable bleeding.

Warmest regards,
Aunt Vadge

This is general information, not a substitute for personalised medical advice.