For awareness of becoming parents, ZBaby Plus is developed as an android application to calculate the pregnancy due date, fetus development simulation, weight gain during pregnancy and the amount of calorie in needs. Pregnancy due date is calculated based on user defined data which is the last menstruation. Next, user can view the simulation of 3D fetus development with description week by week using OpenGL ES. Then the weight gain during pregnancy is calculated from the BMI based on the specification by IOM 2009 while allowing a user to manage her weight gain as well. Updated weight data were recorded and plotted dynamically. Daily calorie requirement can be calculated during pregnancy by Harris-Benedict Equation to maintain the appropriated weight for healthy baby without overeating. Other available functions are recording photos & data in monthly basis, diary for unexpected incidents, vaccine timeline reminder and guiding for mom to take care of baby. ZBaby Plus is a part of 'Lifelong Health IT Project for Thai Citizen'. For accuracy testing, ZBaby Plus has been approved by Ethic Committee, applied in the project "ZBaby Plus: Android application for pregnancy due date, fetus development simulation and weight gain during pregnancy (Quality evaluation program)." from faculty of Nursing, Chiang Mai University on 5th September 2016.