Antenatal mental illness is common. About 3/5 of women have antenatal anxiety or depression with anxiety which are both linked to adverse delivery outcomes and negative effects on child development. Often these conditions remain undetected/untreated, perpetuating the cycle of mental illness. A Canadian survey of pregnant women (\~2000, April 2020) found \>50% endorsed anxiety and \> 2/3 elevated anxiety specific to pregnancy during the COVID-19 pandemic. This is on a background of elevated rates of antenatal mental illness. Psychotherapeutic interventions are preferred antenatally but barriers prevent their initiation and adherence (i.e., time duration). With the pandemic and the spike in anxiety, these vulnerable women are at risk to continue being ill and their child at risk for negative delivery/ longer-term outcomes. It is imperative these women receive rapid treatment to reduce acute anxiety to prevent mental health deterioration and the potential adverse effects. The pandemic has also forced clinicians to deliver healthcare in creative ways such as providing psychiatric care virtually despite their not knowing if the therapy can be effectively provided in this way and must be evaluated.

Mindful Adaptive Practice in Pregnancy (MAPP) is a novel ultra-brief psychotherapy developed by the investigator team to reduce anxiety. Prior work (nonclinical samples) suggested high recruitment and retention, significant distress reduction, and enhancement of wellbeing at rates comparable to gold standard therapies of longer duration. The work with clinical samples has shown it to have a large effect size. The investigators have adapted the technique to pregnant women to address the urgent clinical need for a brief, effective targeted intervention. As the investigators were challenged to offer health care services creatively, they adapted MAPP for virtual delivery, in a group format using the Ontario Telemedicine Network for example.

The overall objective of this study is to determine the feasibility, acceptability, and adherence to a clinical trial protocol evaluating the MAPP intervention on anxiety symptoms among pregnant women. The results of this pilot work will guide the development of a larger multi-site randomized controlled trial (RCT) to definitively evaluate the effectiveness of MAPP. As a secondary outcome, the investigators will assess the effect of MAPP in reducing anxious symptoms; this preliminary data on MAPP's effect will inform an effect size for the larger trial power analysis.

Pregnant participants from obstetrics, family practice, midwifery, and reproductive psychiatry clinics, as well as self-referral from social media, will be recruited. Sixty women will be randomized to the control group (standard care) or the intervention group (standard care plus MAPP). Outcomes will be captured electronically right after therapy ends, 3 months post-therapy, and 6 months post-therapy. Results of this work will be used for the larger trial which will have the potential to change clinical practice. Subsequent knowledge translation activities will foster knowledge uptake of the pilot results and once the final RCT is completed, the intervention will be widely disseminated.