Table 3.

Sample text messages

Category	Theme	Sample text message
Motivators (n = 29)	Support	Don’t let a “bump” in the road keep you from your workout! Get inspired by reading these tips to staying active: bit.ly/t4bbump
Social (n = 14)	Support	Do you have an exercise “buddy?” Enlisting a friend makes exercise fun and provides accountability. Learn more here: bit.ly/t4bcancel
Time (n = 21)	Knowledge	Take the stairs! Choosing an active route to your destination helps squeeze in activity during pregnancy. bit.ly/t4broute
Education (n = 30)	Knowledge	Exercise benefits mom and baby! It can reduce risk of preterm birth, improve oxygen supply for baby & ease labor. bit.ly/t4bhealthpreg
Praise (n = 14)	Support	Don’t feel pressured to hit the gym. Pregnancy is a time to start small & take it easy. Work your way up to 30 min. of daily walking. bit.ly/t4bsmall
Safety (n = 31)	Knowledge	Low-impact aerobics classes are a great option for expecting moms. Learn how to adapt your routine throughout your pregnancy here: bit.ly/t4badapt
Benefits/consequences (n = 29)	Knowledge	Yoga during pregnancy can improve circulation, muscle tone & flexibility. Learn about the many benefits & how to get started here: bit.ly/t4bcalm