Individually-tailored, interactive text messages will be the core component of the intervention. To standardise the participant texting contact the texting schedule will commence from 16 weeks gestation. Participants will receive four to five texts per week. These texts will deliver
information specific to women’s gestational week, encouragement of positive health behaviours and individual behaviour change, monitoring of individual goals and encouragement of self-monitoring of GWG.
The text
messages were informed by formative work and published data [46] and will be delivered using a two-way