Hormonal contraception: what it means for PMS and PMDD

Hormonal contraception is any birth control method that uses synthetic or body-identical hormones (estrogen, a progestin, or both) to prevent pregnancy, instead of a barrier or copper device.

Common methods include:

• The combined pill (estrogen and progestin, taken daily)
• The progestin-only pill, often called the mini pill
• The patch or vaginal ring (estrogen and progestin absorbed through skin or vaginal lining)
• An injection or implant (progestin only, lasting weeks to years)
• A hormonal IUD (progestin released directly in the uterus)

Combined pills, the patch, the ring, the implant, and the injection usually stop ovulation. The hormonal IUD mostly works locally, on the uterine lining and cervical mucus, and often doesn't stop ovulation. Without ovulation, the body doesn't form a corpus luteum, so the usual rise and fall of hormones across the menstrual cycle looks different too.

PMS symptoms, and the mood symptoms of PMDD, show up in the luteal phase, the one to two weeks before a period. PMS usually eases once bleeding starts; PMDD eases within a few days of it starting.

PMDD comes from how the brain reacts to the normal drop in estrogen and progesterone, not from unusual hormone levels (Schmidt et al., 1998, NEJM). Hormonal contraception changes that pattern in two ways:

• Ovulation stops, so the corpus luteum that makes the late-cycle progesterone surge doesn't form.
• Hormone levels from the method stay steadier than a natural cycle's rise and fall.

That's why some doctors prescribe it to smooth out the drop that triggers symptoms (see what causes PMDD). It doesn't work the same way for everyone: response depends on the specific hormones in the method, the dose, and a woman's own history with mood symptoms.

A 2017 trial in the Journal of Women's Health compared women using cyclic hormonal contraception with those who weren't (about 490 women in the screened cohort). It found hormonal contraception slightly reduced the size of premenstrual symptom changes overall, with the clearest difference for depression, anger, and irritability around the start of a period.

Other findings are more mixed. A 2020 review in Clinical Drug Investigation found that different progestins affect allopregnanolone, a progesterone byproduct linked to anxiety and mood, in different ways, and that a personal history of depression or PMDD raises the chance of a negative mood reaction.

A full research summary has more on how the cycle affects mood.

If your pattern fits PMDD, a doctor decides whether hormonal contraception is a good fit, usually weighed against options like SSRIs taken only in the luteal phase, or CBT.

If you've had depression or a mood reaction to contraception before, mention it. That history raises the chance of it happening again.

Questions worth bringing to the appointment:

• How a past hormonal method affected your mood, if you remember
• Whether mood symptoms follow your cycle now or happen all month
• What else you've tried, including SSRIs or CBT

Hormonal contraception isn't something to start or judge alone. If a new method makes your mood worse for more than a cycle or two, go back to whoever prescribed it rather than waiting it out.

Niyora is a PMS and PMDD support app. While you figure out what helps, its Moon tool lets you write down what happened on a day when things feel overwhelming, see it from another angle, and draft a reply you can hold for 20 minutes before you send it.