Most women between the ages of 18 and 44 have sex about once a week. Roughly 52% to 54% of women in that age range report a weekly frequency, though the number varies depending on relationship status, life stage, and health. For married or cohabiting couples specifically, the median drops to about three times per month.
Frequency by Age Group
Sexual frequency among women holds surprisingly steady from the late teens through the mid-40s. About 52% of women ages 18 to 24 have sex at least once a week, and that number barely changes through the next two decades: 54% of women ages 25 to 34 and 53% of women ages 35 to 44 report the same weekly frequency. The consistency is notable because many people assume sexual activity drops sharply with age, when in reality the decline is gradual and doesn’t become pronounced until later in life.
After 45, frequency does tend to decrease, driven partly by hormonal shifts around menopause and partly by changes in relationship dynamics, partner availability, and overall health. But a weekly average during the reproductive years is a reasonable benchmark for what’s typical.
How Relationship Status Changes Things
Being in a relationship is the single biggest predictor of how often a woman has sex. Married and cohabiting women have sex more often than single, divorced, or widowed women. That said, “more often” doesn’t mean daily. A 2019 study found that the median for married or cohabiting couples was three times per month, which works out to roughly once every ten days.
That number may feel lower than expected, but it reflects the reality of long-term partnerships where schedules, stress, fatigue, and children compete for time and energy. One large study from Dublin found that among sexually active adults, 36% had sex once or twice a month while 33% had sex once or twice a week. So even within couples, there’s a wide range of normal.
The Once-a-Week Sweet Spot
If you’re wondering whether more sex means more happiness, research from the Society for Personality and Social Psychology offers a clear answer: yes, but only up to a point. Couples who have sex once a week report significantly higher relationship satisfaction than those who have sex less often. But having sex more than once a week doesn’t add any measurable boost to happiness.
This plateau effect is one of the more consistent findings in relationship research. It suggests that maintaining a regular intimate connection matters, but the pressure to have sex as often as possible is unnecessary. Once a week appears to be the frequency where couples get the most benefit without it feeling like an obligation.
Your Cycle Plays a Role
Women’s sexual desire isn’t constant throughout the month. Research published through the CDC found that the six consecutive days with the highest intercourse frequency line up almost exactly with the six fertile days of the menstrual cycle. Within that window, sexual activity peaks just before and on the day of ovulation.
The mechanism behind this isn’t fully understood, but rising hormone levels around ovulation appear to increase libido. There’s also evidence that women may become subtly more attractive to partners during this window, possibly through behavioral cues or scent changes. Women on hormonal birth control, which suppresses ovulation, don’t typically experience this mid-cycle spike.
After Having a Baby
Pregnancy and childbirth create the most significant short-term disruption to sexual frequency. Most healthcare providers suggest waiting at least six weeks after delivery before resuming intercourse, and the data shows that many women take longer. In one study, only about 32% of women had returned to sexual activity by the six-week mark.
The reasons are both physical and practical. Healing from delivery, sleep deprivation, hormonal changes (especially for breastfeeding mothers), and the sheer exhaustion of caring for a newborn all contribute. Sexual interest typically returns gradually, and while the general timeline is “back to normal within a few months,” many women report that their frequency remains lower than pre-pregnancy levels well into the first year.
Menopause and Beyond
Menopause brings hormonal changes that can affect sexual frequency in several overlapping ways. Lower hormone levels cause vaginal tissues to become thinner and drier, which can make intercourse uncomfortable. Arousal may take longer. Night sweats disrupt sleep, leaving women fatigued, and emotional changes can dampen interest. Some women find their desire for sex simply decreases.
But this isn’t universal. Some postmenopausal women report enjoying sex more, often because concerns about pregnancy are gone and life circumstances have stabilized. The physiological barriers are also treatable. The range of experience during and after menopause is wide, and a drop in frequency isn’t inevitable.
Medications and Mental Health
Antidepressants are one of the most common medical causes of reduced sexual frequency in women. The class of medications most widely prescribed for depression and anxiety can cause sexual side effects in a significant number of users, with studies estimating rates anywhere from 36% to over 70% depending on the specific medication and how the data was collected. Reduced arousal is the most frequently reported problem, affecting 40% to 50% of both men and women in one study, more common than difficulties with orgasm.
Other medications, including some blood pressure drugs and hormonal contraceptives, can also lower desire. If you’ve noticed a change in your sex drive that coincides with starting a new medication, that connection is worth exploring with your prescriber, since alternatives with fewer sexual side effects often exist.
The Busyness Myth
A common assumption is that women with demanding schedules, particularly working mothers juggling careers and childcare, simply don’t have time for sex. The data tells a more nuanced story. Research published in the Journal of Family Issues found that women (and men) who spent more hours on housework and paid work actually reported more frequent sex, not less. The authors describe this as a “multiple spheres” effect: people who are active and engaged in one area of life tend to be active in others.
This doesn’t mean exhaustion never gets in the way. It does. But the relationship between busyness and sexual frequency isn’t the straightforward trade-off most people assume. Energy and engagement seem to carry across different parts of life rather than being a finite resource that runs out.
A Broader Trend Worth Noting
Across the population, Americans are having less sex than they did 20 years ago, and the shift is most dramatic among younger adults. Between 2000 and 2018, the proportion of 18- to 24-year-olds reporting no sexual activity in the past year increased substantially. Researchers point to several possible drivers: more time spent on screens, delayed partnering, increased social isolation, and changing attitudes toward casual sex. This trend predates the pandemic and appears to be continuing, though it affects young men more sharply than young women.
For women specifically, this means that if you’re having less sex than you expected or than you think is “normal,” you’re far from alone. The averages are broad, the range of healthy is wide, and the only frequency that truly matters is the one that feels right for you and your partner.