Aerobic, Strength, Kegel (ASK) Exercise Intervention Perceptions for Postpartum Health

The goal of this pilot clinical trial is to learn whether a 12-week home-based exercise programme is feasible, acceptable, and safe for postpartum women in Hong Kong who had hypertensive disorders of pregnancy. The exercise programme is called the Aerobic, Strength, and Kegel exercise programme, or ASK programme. The main questions this study aims to answer are: * Can postpartum women follow the ASK exercise programme at home? * Is the ASK exercise programme acceptable and safe? * Does the ASK exercise programme show early benefits for postpartum recovery and health? Researchers will compare women who receive the ASK exercise programme with women who receive standard postnatal care. Participants will be randomly assigned to one of the two groups. They will complete study assessments at the beginning of the study and after 12 weeks. Women in the ASK exercise programme group will complete three 60-minute exercise sessions per week for 12 weeks, supported by a mobile app and wearable device. Women in the standard postnatal care group will continue to receive usual postnatal care.