Can the Contraceptive Pill Affect Your Mood? What the Evidence Says

"I feel like a different person since I started the pill." It's one of the most common things women say, and one of the most frequently dismissed by healthcare providers. But the relationship between hormonal contraception and mood is real, complex, and worth understanding.

What Women Actually Experience

Reports of mood-related side effects from the contraceptive pill are widespread. They include:

  • Low mood or low motivation
  • Irritability or mood swings
  • Increased anxiety
  • Emotional flatness or reduced interest in things
  • Reduced libido
  • Tearfulness without an obvious cause

These experiences are reported by a significant proportion of pill users. Yet they are also not universal, many women feel emotionally stable on the pill, and some even notice mood improvements, particularly those using it to manage premenstrual syndrome (PMS) or PMDD.


What the Research Shows

The research on this topic is genuinely mixed, and it's worth being clear about what is and isn't established.

In favour of an association

A landmark Danish study published in JAMA Psychiatry (2016), which followed over one million women for thirteen years, found that users of combined hormonal contraceptives were significantly more likely to be prescribed antidepressants or receive a diagnosis of depression, particularly in adolescent users. The risk was highest in the first year of use.

More recent evidence

A 2023 study published in Epidemiology and Psychiatric Sciences found that the first two years of combined pill use were associated with a 71% higher rate of depression compared to women who had never used oral contraception. Women who started the pill as teenagers saw even higher rates. The study examined combined pills specifically and did not draw conclusions about other contraceptive methods.

Against a simple causal relationship

Other research has found that women using hormonal contraception reported fewer depressive symptoms on average than non-users. These studies highlight confounding factors, including the fact that women who choose hormonal contraception may differ in other ways from those who don't.

The honest answer: the evidence is not conclusive. Hormonal contraception appears to affect mood in a meaningful way for some women and not at all for others. Individual variability, including genetics, mental health history, the type of progestogen used, and the dose, likely plays a large role.


Why Hormones May Affect Mood

Oestrogen and progesterone (and their synthetic equivalents in the pill) interact with neurotransmitter systems that regulate mood, including:

  • Serotonin Involved in feelings of wellbeing, happiness, and emotional regulation
  • GABA The brain's main inhibitory neurotransmitter, linked to anxiety reduction
  • Dopamine Associated with motivation and reward

Synthetic progestogens in particular have varying degrees of interaction with other hormone receptors (including glucocorticoid receptors linked to stress response), which may explain why different pill types affect mood differently.


Does the Type of Pill Matter?

This is where tracking becomes valuable. Different progestogens interact differently with neurological pathways.

Some research suggests that pills containing levonorgestrel (second generation, e.g. Microgynon, Rigevidon) may be more associated with mood-related side effects than pills with lower androgenic activity (e.g. desogestrel, gestodene, or drospirenone). However, the evidence is not consistent across all studies.

Drospirenone-based pills (such as Yasmin) have anti-androgenic properties and are sometimes prescribed specifically for mood-related conditions like PMDD. Some women report mood improvements when switching to these pills.

Oestrogen dose may also matter, lower-dose pills (20 mcg) may have different mood profiles than standard-dose ones (30 mcg).


Distinguishing Pill Side Effects from Other Causes

Mood changes are common and have many causes. Before attributing them solely to the pill, it's worth considering other factors:

  • Stressful life events
  • Sleep quality
  • Exercise and lifestyle changes
  • Underlying depression or anxiety that predates the pill
  • Relationship changes (often coincide with starting contraception)
  • Thyroid issues or nutritional deficiencies

The challenge is that mood changes often occur in the same period of life when women start or change their contraception, making causation hard to establish intuitively.


How to Use Estroclic to Track Mood Patterns

One of the most practical tools for understanding your pill's impact on mood is systematic tracking over time.

Estroclic's health event log allows you to record subjective experiences alongside your pill-taking data. Over a cycle or two, patterns may emerge, for example, mood dips that consistently occur in the first week of a new pack, or during the pill-free break.

Some women use Estroclic's calendar to correlate mood entries with pill-taking consistency, noting whether mood changes tend to occur around missed pills or late doses, which might point to sensitivity to hormone fluctuations rather than the pill itself.

Tracking this data and presenting it to your GP gives them a far more useful picture than "I've been feeling low since starting the pill", it provides dates, patterns, and context.

Track mood patterns alongside your pill history

Log health events, mood observations, and pill timing in one place. Two cycles of data is worth more than a vague impression at your GP appointment.

Free on Android

What to Do If You Suspect the Pill Is Affecting Your Mood

Don't stop abruptly. Finish your current pack before making any changes, unless you're experiencing severe symptoms.

Talk to your GP. Mood side effects are a legitimate medical concern and a valid reason to request a pill change or to consider an alternative contraceptive method.

Consider a switch. If you're on a second-generation pill and experiencing mood effects, your GP might suggest trying a pill with a different progestogen profile, or a progestogen-only pill or non-hormonal method.

Give a new pill time. If you switch pills, mood-related side effects may take several months to settle. Three months is generally considered the minimum evaluation period.

Consider non-hormonal methods. If mood effects persist across multiple pill types, you may be one of the women who is sensitive to exogenous hormones generally. Non-hormonal options such as the copper IUD, condoms, or fertility awareness methods do not affect hormone levels.


Summary

  • Mood changes on the pill are common but not universal
  • Research shows an association with depression for some women, but causation is complex and the evidence is mixed
  • Different pill types, especially different progestogens, may have different mood profiles
  • Tracking your experiences over time provides useful data for yourself and your GP
  • Mood effects are a legitimate reason to discuss switching pills or methods with your healthcare provider

This article is for informational purposes only. If you are experiencing significant mood changes, low mood, or mental health concerns, please speak to a GP or mental health professional. Estroclic is a personal tracking app, not a diagnostic or therapeutic tool.

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