Birth Control and Low Sex Drive: What You Need to Know
She started taking it to prevent pregnancy, or to regulate her cycle, or because her doctor recommended it without mentioning much about what else it might do. Then, over weeks or months, something shifted. The desire did not disappear entirely. But it changed. The spontaneous want became rarer. Sex felt different, sometimes harder to get into, sometimes less satisfying. She wondered if something was wrong with her, or with the relationship, before eventually wondering if the pill had anything to do with it.
For a significant number of women, it does.
The Mechanism: How Hormonal Contraception Affects Desire
Combined oral contraceptives, the most common form, work by suppressing ovulation through synthetic oestrogen and progestogen. This suppression also affects the ovaries' production of testosterone, which, in women as in men, plays a significant role in sexual desire.
Beyond direct testosterone suppression, the pill also increases levels of sex hormone-binding globulin (SHBG), a protein that binds to testosterone in the bloodstream and renders it biologically inactive. The result is a double reduction: less testosterone produced, and more of what remains bound and unavailable. Studies have found that SHBG can remain elevated for months after stopping hormonal contraception, which is why some women find their desire does not immediately return when they come off the pill.
Research published in the Journal of Sexual Medicine found that women on combined oral contraceptives had significantly higher SHBG levels and significantly lower free testosterone than non-users. Critically, sexual function scores, including desire, arousal, and satisfaction, were lower in the contraceptive group.
Which Methods Are Most Likely to Cause This
Higher Risk
Combined Oral Contraceptives
The standard combined pill (oestrogen plus progestogen) has the strongest evidence for affecting libido through the SHBG mechanism. Higher-oestrogen formulations tend to produce more SHBG elevation. The patch and the vaginal ring work through similar mechanisms and carry similar risks.
Moderate Risk
Progestogen-Only Methods
The mini-pill, the hormonal IUD (Mirena), and the implant use progestogen only, with lower oestrogen effects on SHBG. Some women find these affect desire less than combined methods. Others still notice a change. The research on progestogen-only methods and libido is less conclusive.
Lower Risk
Non-Hormonal Methods
The copper IUD is entirely non-hormonal and does not affect testosterone or SHBG. For women whose libido is meaningfully affected by hormonal contraception, switching to a copper IUD is often the most straightforward path to restoring desire. Barrier methods (condoms, diaphragms) also carry no hormonal effects on libido.
Individual Variation
Not Everyone Is Affected
Many women take hormonal contraception with no noticeable effect on desire. Sensitivity to hormonal fluctuations varies significantly between individuals. Some women actually report improved sexual experience on the pill, largely because reduced pregnancy anxiety improves relaxation and presence during sex. The relationship is not universal.
What to Do If This Is Affecting You
The first and most important step is to name it. Many women experiencing this do not connect the symptom to the cause, or they are told by doctors that the pill does not affect libido, despite the evidence to the contrary. If you suspect your contraception is affecting your desire, that suspicion is worth taking seriously.
Low sex drive caused by contraception is not a personal failing, and it is not evidence that something is wrong with the relationship. It is a physiological response to a hormonal change. Naming that clearly, with your doctor and with your partner, is where addressing it begins.
Speak with your doctor about alternative methods. Switching formulations, moving to a lower-oestrogen pill, or transitioning to a progestogen-only or non-hormonal method may resolve or significantly reduce the effect. Give any switch three to six months before assessing, as hormonal systems take time to recalibrate. Remember that SHBG can remain elevated for months after stopping hormonal contraception, so an immediate return of desire after coming off the pill is not guaranteed.
Talking openly with your partner about what is happening is not a sign that the relationship is in trouble. It is the most direct way to prevent the quiet distance that can build when desire changes and neither person understands why. Low libido in women has multiple overlapping causes, including anxiety and stress, and birth control is often one factor among several worth investigating.
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