# Can you get pregnant during perimenopause? · Peri Signals > Source: https://perisignals.com/articles/can-you-get-pregnant-during-perimenopause Stages and timing ## Can you get pregnant in perimenopause? Yes. Your ovaries can still release an egg until your final period, so the NHS says you need contraception for 2 years after your last period if you are 40 to 49, and for 1 year if you are 50 or over. Pregnancy becomes much less likely through your 40s, but irregular cycles make it harder to know when you could conceive, and a missed period can mean either thing. By Nora Whitfield, 2 November 2026 ### Why pregnancy is still possible Perimenopause is the run-up to menopause, and menopause itself is only reached once you have gone 12 months without a period. Until then, some of your cycles still include ovulation. They come less often and less predictably than they did in your 30s, but a cycle that releases an egg can be followed by a pregnancy just as it could at any other age. The [NHS page on menopause and perimenopause symptoms](https://www.nhs.uk/conditions/menopause-and-perimenopause/symptoms/) says it directly: it is possible to get pregnant during perimenopause, and you still need contraception. The difficulty is that perimenopause scrambles the signals you might use to judge your own risk. A period that arrives 10 days early, then one that skips two months, gives no clue about whether the next cycle will release an egg. A long gap is a good example. A run of 60 days or more without a period is a sign of the late transition, which our page on [irregular periods in perimenopause](/articles/irregular-periods-perimenopause) explains. It does not mean the ovaries have stopped. Plenty of women have a period again after a gap like that, and an egg can be released before the bleed that ends it. ### Is it harder to get pregnant during perimenopause? Much harder, yes. The American College of Obstetricians and Gynecologists, in its guide to [having a baby after 35](https://www.acog.org/womens-health/faqs/having-a-baby-after-age-35-how-aging-affects-fertility-and-pregnancy), gives the numbers. In their 20s and early 30s, around 1 in 4 women get pregnant in any single cycle of trying. By 40 it is around 1 in 10\. By 45, ACOG says, fertility has declined so much that getting pregnant naturally is unlikely. Two things are going on. There are fewer eggs left, and the ones that remain are more likely to carry abnormal chromosomes. ACOG also notes that conditions which affect fertility, such as fibroids and endometriosis, become more common with age. Unlikely is the important word. Fertility falls in your 40s, but it does not reach zero until your periods have stopped for good. The NHS rule on contraception exists because enough women still conceive in these years for it to matter. ### How long you need contraception in perimenopause The NHS guidance is to keep using contraception: * for 2 years after your final period, if you are 40 to 49 * for 1 year after your final period, if you are 50 or over The catch is in the words "final period". You only know a period was your last one in hindsight, after a year with no bleeding at all. In practice that means writing down the date of every period, so that when one turns out to be the last you can count forward from the right day rather than a guess. If you are using hormonal contraception, this rule is harder to apply. The NHS explains that the progestogen-only pill, the hormonal coil (IUS), the implant and the injection can make periods irregular or stop them completely, so they can hide where you are in the transition. The combined pill gives you a monthly bleed for as long as you take it, whatever your ovaries are doing. The NHS also says the combined pill is not recommended from 50, because the risks generally outweigh the benefits. Ask a GP or sexual health clinic which method to use now and when you can stop, since the answer depends on your age and the method you are on. ### Perimenopause or pregnancy symptoms? The overlap is wide enough that you cannot tell them apart by how you feel. Compare the NHS list of [early signs of pregnancy](https://www.nhs.uk/pregnancy/trying-for-a-baby/signs-and-symptoms-that-might-mean-youre-pregnant/) with its perimenopause list and several appear on both: * a missed or late period * light bleeding or spotting instead of a normal period * feeling very tired after an ordinary day * breasts that feel larger or tender * needing to pee more often * mood changes Some signs lean one way. Feeling or being sick, a metallic taste, a new sensitivity to smells, food cravings, and more vaginal discharge without soreness all appear on the NHS pregnancy list and not on its perimenopause list. Hot flashes, night sweats and vaginal dryness lean towards perimenopause. None of these settles the question, because you can be pregnant and perimenopausal at once, with symptoms from both. Pregnancy symptoms usually start around 4 to 6 weeks into a pregnancy, according to the NHS. By then you may already have put a late period down to your changing cycle, which is the most common way a pregnancy in your 40s goes unnoticed for a while. ### When to take a pregnancy test A home test is the only way to find out, and it is cheap and quick. The NHS page on [doing a pregnancy test](https://www.nhs.uk/pregnancy/trying-for-a-baby/doing-a-pregnancy-test/) gives the timing: * Most tests work from the first day of a missed period. * If you cannot tell when your next period is due, which is common in perimenopause, test at least 21 days after you last had unprotected sex. * The hormones in contraception do not stop a test from working. * A positive result is almost certainly correct. A negative one is less reliable, so if your period still has not come, test again a few days later. * If a second test is negative and there is still no period, the NHS advises speaking to your GP. A negative test followed by a period that eventually arrives is, in your 40s, most likely a perimenopause cycle that ran long. Our article on [when perimenopause starts and how long it lasts](/articles/when-does-perimenopause-start) describes how cycle gaps lengthen towards the end. ### Signs that need help straight away A missed period with unusual bleeding and pain low in your tummy can be a sign of an ectopic pregnancy, where a pregnancy grows outside the womb. According to the [NHS page on bleeding between periods](https://www.nhs.uk/symptoms/vaginal-bleeding-between-periods-or-after-sex/), that combination needs checking as soon as possible. In the UK, get an urgent GP appointment or call NHS 111 the same day. In the US, call your doctor or go to urgent care. If the pain is severe or you feel faint, call 999 or 911\. Our page on [spotting between periods in perimenopause](/articles/spotting-between-periods-perimenopause) sets out which other kinds of bleeding should be checked and how soon. ### If you are hoping to get pregnant Some women in their early 40s are trying for a baby rather than avoiding one. ACOG's advice is to talk to an ob-gyn about a fertility check if you are over 35 and have not conceived after 6 months of regular sex without contraception. If you are over 40, it recommends that check before you start trying. It also suggests a visit before pregnancy to go over your health, your medicines and any screening, because some risks rise with age. Preeclampsia is more likely after 40, and miscarriage and stillbirth are more common over 35, according to the same ACOG guide. ### My take If you are in your 40s, still having periods of any kind and do not want to get pregnant, I'd keep using contraception and assume you can conceive until the NHS count says otherwise. I'd start that count only from a period you have written down, because a remembered "it was around spring" is too loose for a rule measured in years. If a period is late, I'd test rather than guess. A test settles in minutes the question that symptoms never will, and it costs far less worry than waiting for a period that may not come. ### Related reading For the wider picture, the overview of [perimenopause symptoms and how to track them](/articles/perimenopause-symptoms) covers every change the NHS lists. Our [printable symptom diary](/articles/printable-perimenopause-symptom-diary-and-appointment-checklist) has a row for period dates, which is what the contraception count runs from, and the [stages and timing topic](/topics/stages-and-timing) gathers every page on where you are in the transition. Written by Last checked 2026-11-02 --- [Peri Signals](/) Perimenopause symptoms, explained and tracked Plain answers on perimenopause symptoms for women 35 to 65: what is common, what to tell your doctor, and how to keep a useful symptom record. Some links on this page may earn us a commission. It never decides what we write about or recommend. © 2026 Peri Signals. 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