Imposter Syndrome After Maternity Leave: Feeling Like You've Forgotten How to Work

You've done this job for years. You were good at it. And then you took four months off, and now you're sitting at your desk wondering how you ever functioned here. The industry terminology that used to come naturally sounds foreign. Your inbox is a wall of context you no longer have. Your colleagues have moved on with projects and decisions made without you. You feel, somehow, like a fraud who has been invited to impersonate someone competent.

This is imposter syndrome — and returning from maternity leave is one of the most common triggers for its acute flare.

Why Maternity Leave Activates Imposter Syndrome

Several things converge to make re-entry particularly fertile ground for feeling like a fraud. First, you have genuinely missed things. There's a real gap in context, relationships, and institutional knowledge. Your brain's tendency to catastrophize turns this real but manageable gap into evidence of fundamental incompetence.

Second, your brain is not currently running at its pre-leave capacity. Chronic sleep deprivation impairs working memory, processing speed, and executive function — the exact cognitive tools you need to feel competent at work. When tasks feel harder, your brain interprets this as "I've lost my abilities" rather than "I'm running on four hours of sleep."

Third, matrescence — the identity shift of becoming a mother — means your relationship to work has changed. You may be less willing to perform confidence you don't feel, less interested in impression management. This can read as imposter syndrome when it's actually a healthy loss of the false confidence that was covering real uncertainty all along.

This Is Temporary

The research on workforce re-entry consistently shows that the period of acute imposter syndrome after leave peaks in the first four to twelve weeks and then diminishes substantially. The context gap closes. Sleep (eventually) improves. The brain adapts. Colleagues recalibrate their expectations.

Knowing this is temporary doesn't make the discomfort disappear, but it changes the meaning of the discomfort. "I feel incompetent right now" is different from "I am incompetent." One is a passing state; the other is a false conclusion drawn from that state.

Practical Ways to Rebuild Confidence

Ask for a formal ramp period. Many organizations are willing to structure re-entry more gradually than the default "back Monday, fully operational." Requesting this isn't weakness — it's good project management for your own cognitive reintegration.

Schedule short wins in your first weeks. Look for tasks where you can demonstrate competence to yourself — preferably things you've done well before. Momentum builds.

Name the imposter syndrome to a trusted colleague or mentor. Externalizing it reduces its power. You'll also likely discover that they've experienced it too.

When Imposter Syndrome Is Covering Something Else

There's a version of this that goes beyond imposter syndrome. If the self-doubt is accompanied by persistent low mood, inability to find pleasure in anything (including things outside work), a feeling that you're fundamentally worthless or that your family would be better off without you, or if it's not improving after the first few weeks — these are signs that postpartum depression may be active.

Postpartum depression doesn't always look like crying at home. It frequently shows up in the workplace as shame, withdrawal, inability to concentrate, and a pervasive sense of failure. If this resonates, a perinatal mental health therapist can help you sort out what's re-entry adjustment and what needs direct clinical attention.