Contraception during perimenopause
Irregular periods are the defining feature of perimenopause, and they get misread as declining fertility rather than declining regularity. The two aren't the same. Faculty of Sexual and Reproductive Healthcare (FSRH) guidance sets out exactly when contraception can stop, and it's based on age and your last period, not on how erratic your cycle has become.
The rule that actually applies
FSRH guidance gives two thresholds, both counted from your last period, not from when perimenopause started:
- Under 50: continue contraception for 2 years after your last period.
- 50 or over: continue contraception for 1 year after your last period.
Beyond age 55, natural loss of fertility can be assumed for most people, and most guidance treats contraception as no longer needed at that point regardless of period history.
Why the method also matters
Combined hormonal contraception (the combined pill, patch or ring) is generally stopped at 50 and switched to a different method — not because it stops being effective, but for reasons unrelated to contraception itself (the same estrogen-dose considerations that come up in other combined-hormone conversations, distinct from the HRT dose question — see Migraine and HRT for one example of that distinction).
Progestogen-only methods — the progestogen-only pill, the implant, and hormonal or copper intrauterine devices — can typically continue to age 55 without the same switch, because they don't carry the same consideration.
Why this matters for someone using HRT too
HRT is not contraception, at any dose or in any form. Someone on HRT who is still within the window above needs a separate method if pregnancy is a possibility — mixing up "I'm on HRT so I must be past this" with actual fertility status is a genuinely common and consequential mistake. If you're not sure which category applies to you, that's a specific, answerable question for a GP or sexual health clinic, not something to infer from symptoms.
This is general information, not medical advice. Contraception need is a specific clinical question that depends on your age, method history and medical history. HormoneLog does not track or advise on contraception — bring the question to a GP or sexual health clinic directly.
How periods change in perimenopause. · What "12 months" means, and why menopause is only known in hindsight. · Perimenopause vs menopause — the definitions, plainly.
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About HormoneLog
HormoneLog is an iOS app from Baker Ventures LLC for tracking perimenopause and menopause symptoms and keeping an HRT record: what you took, at what dose, from when, and what changed afterwards. It is built for the appointment, where "it has been bad lately" is worth far less than a dated record of frequency and severity. The app is in development.
HormoneLog is a record-keeping tool. It does not diagnose, does not score you, and makes no claim about symptom relief. The guides on this site link to NICE, the NHS, the Menopause Society and peer-reviewed sources, and say plainly where the evidence is thin. Everything here is free and needs no account.
Questions and answers
Can I get pregnant during perimenopause?
Yes. Ovulation becomes irregular, not absent, until you've actually reached menopause — and menopause itself is only confirmed in hindsight, after 12 months without a period. Irregular cycles are not the same as no fertility.
When can I stop using contraception?
FSRH guidance sets this by age, not by how your cycles look — for most methods, continue for 2 years after your last period if you're under 50, or 1 year after your last period if you're 50 or over.
Is it different for hormonal contraception?
Yes, partly. Progestogen-only methods (the pill, implant, hormonal coil, copper coil) can typically continue until age 55, when natural fertility loss can be assumed. Combined hormonal contraception is usually stopped and switched to an alternative at 50, for reasons unrelated to fertility.
Can HormoneLog tell me when I can stop contraception?
No. HormoneLog logs your dates and symptoms; it does not track contraception or make a recommendation about stopping it. That decision is between you and a prescriber, based on your age, method and history.
HormoneLog. “Contraception during perimenopause.” Baker Ventures LLC, September 8, 2026. https://hormonelog.bakerventuresstudio.com/guides/contraception-during-perimenopause/