Inclusion Criteria: for this study are first-time mothers and fathers who are  20 years old and above; primipara with a singleton pregnancy at 24-28 weeks' gestation; able to read and write in Mandarin; the husband or support partner will be willing to attend the intervention program; able to access and use the Internet by computer and/or smartphone daily.  Exclusion Criteria: are the first-time mothers and fathers who have  chronic diseases; obstetric complications; an abnormal fetal screening; unable or unwilling to comply with the requirements of the research protocol; women and their partners did not have time for the web-based intervention program; participation on any other interventional study.