You can still ovulate — so you can still conceive
During perimenopause your ovaries are winding down, but they don't switch off all at once. You still ovulate some months, which means pregnancy is still possible. Fertility is lower than in your 20s and 30s, but 'lower' is not 'zero'.
Because ovulation becomes unpredictable, you can't reliably time or avoid your fertile window the way you might have earlier in life. Irregular periods make natural methods much less dependable.
How long do you need contraception?
General guidance is to continue contraception until you've had 12 months with no periods if you're over 50, or 24 months if you're under 50. That's because occasional ovulation can still happen even after long gaps between periods.
The right method depends on your health and preferences. Some options, like a hormonal IUD, can also help with the heavy, erratic bleeding many women get in perimenopause — a two-for-one benefit.
Planning a pregnancy in perimenopause
If you do want to conceive in your 40s, it's worth speaking with a GP early. They can check your general health, arrange pre-conception care, and discuss the realistic picture and options, including referral to a fertility specialist if needed.
Whether you're trying to avoid pregnancy or hoping for one, a GP can help you navigate contraception and fertility during this in-between stage.
Related condition
Menopause & perimenopause →References & sources
- 1.Menopause — Jean Hailes for Women's Health
- 2.Menopause — Better Health Channel
- 3.Hormone replacement therapy — healthdirect
- 4.Post-menopause — healthdirect
- 5.Menopause health info — Australasian Menopause Society
This content is general information and not a substitute for individual medical advice. Please consult a GP for your personal situation.
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