Table 1 Study eligibility criteria

Inclusion criteria

1. Registered as a patient with a participating general practice

2. Female

3. Aged 18 to 48 years

4. Main spoken language coded as English

Exclusion criteria

1. Current pregnancy known to the patient’s general practice

2. Having a condition causing permanent infertility (e.g., hysterectomy, tubal ligation, menopause)

3. Having an enduring condition involving profound cognitive impairment (e.g., severe developmental language disorder or disorder of intellectual development) likely to introduce major difficulties in understanding the questionnaire and/or its purpose

4. Likely to be distressed by pregnancy-related content (e.g. pregnancy loss at any stage in the last 3 months, perinatal mortality ever)