The delivery of preventive care for modifiable health risks (smoking, nutrition, alcohol, physical activity and gestational weight gain) is a critical part of antenatal care. Clinical guidelines recommend that preventive care is delivered using three elements: Ask, Advise, and Help (AAH). Unfortunately, the AAH model for modifiable risk factors is not routinely delivered to all pregnant people in face-to-face antenatal visits. The investigators will test if adding a digital support tool to usual antenatal care increases the provision of guideline-recommended preventive care for smoking, nutrition, alcohol, physical activity and gestational weight gain, compared to usual antenatal care at two maternity services based at Maitland Hospital and Manning Base Hospital in New South Wales, Australia. The digital support tool will provide the opportunity for pregnant people to self-assess smoking, nutrition, alcohol, physical activity and gestational weight gain risk prior to their antenatal visits, while also being provided with tailored guideline-based information and the opportunity to self-refer to support services. Use of the digital support tool may also prompt pregnant people and/or their antenatal clinicians to have discussions around smoking, nutrition, alcohol, physical activity and gestational weight gain risks at antenatal appointments. As well as assessing impact on receipt of care for smoking, nutrition, alcohol, physical activity and gestational weight gain, the investigators will also explore the feasibility, acceptability, barriers/enablers to use and content and functional preferences of the digital support tool for pregnant people.

Inclusion Criteria:

• Any pregnant person (aged 18 years and over) with a scheduled first antenatal appointment at one of the two participating maternity services
• Sufficient level of English language proficiency to access and use the digital support tool and complete follow-up surveys.

Exclusion Criteria:

• Any pregnant person who has had an adverse pregnancy outcome. As per previous studies undertaken by the research team, this criterion will be assessed by review of relevant medical record fields and anyone who meets this criterion will be flagged to exclude from invitation to the study or from being included in any trial related data collection or contacts.
• No registered mobile phone number

If data is requested by other researchers following the publication of study results, a reasonable request in writing to the Chief Investigator (Dr Kingsland) will be required. Only deidentified data will be provided. Ongoing custody of the data will remain with the Chief Investigator- Dr Kingsland.

Data collection staff that are involved in undertaking telephone interviews with control and intervention group participants will not be aware of their group allocation when collecting data for primary outcome measures.