Does the birth control pill cause mood swings?

Last reviewed July 6, 2026 by Dr. Sapna Jadhav, General Physician. Sources from ACOG, NHS, Mayo Clinic, CDC, NICE, NIH, Cochrane, and peer-reviewed journals.

Bottom lineSome women experience genuine mood changes on the pill - the risk appears highest for teenagers and those with a history of depression - but large studies find little or no average effect, and some women's mood improves; tracking mood for 2-3 cycles after starting a pill is the reliable way to know how it affects you.

It can for some women - but it is not inevitable, and for others the pill actually improves mood by smoothing out PMS.

What the evidence says

The research is genuinely mixed:

• A large Danish registry study of more than a million women found that hormonal contraception users were more likely to be prescribed antidepressants for the first time, with the strongest effect in teenagers.
• Randomized trials and other large studies, however, find little or no average effect on mood - and some women report better mood because the pill flattens the hormonal swings behind PMS and PMDD.

Both things can be true: on average the effect is small, but individual women can be genuinely sensitive to a specific progestin or dose.

Who is more likely to notice mood effects

• Teenagers and young women starting their first hormonal method
• Women with a history of depression or PMDD
• Women switching to a formulation with a different progestin than they are used to

What to do about it

1. Track your mood daily for 2-3 cycles after starting or switching a pill - patterns are impossible to judge from memory.
2. If mood clearly worsens and stays worse, ask your clinician about a different formulation (progestins differ), a lower dose, or a non-hormonal method.
3. Do not stop abruptly without a backup plan - and if you experience severe low mood or thoughts of self-harm, seek help right away.

Femora's daily mood logging is built for exactly this: a dated record you can put in front of your clinician instead of trying to reconstruct three months from memory.

This is general information, not medical advice. Read the full evidence roundup: 15 facts about the birth control pill.

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