Pregnancy Calculator Calculate Based On: Last Period Conception Date Due Date First Day of Last Menstrual Period * Average Length of Cycles From first day of your period to the first day of your next period. Ranges from: 22 to 44. Default = 28 Optional: Leave 28 if unsure. Your Due Date * Your Conception Date * This is not a diagnosis. The calculations that are provided are estimates based on averages. Pregnancy Essential guidance for every stage of your pregnancy journey. Nutrition Science-based dietary advice for optimal women's health. Baby Care Expert tips for newborn health and early development. Menopause Professional support for navigating life's transitions. Woman's Health Comprehensive wellness guidance for every life stage.
