The Conception Date Calculator will calculate what date and day of the week your baby was conceived on based on your pregnancy due date. The conception calculation is based on the average number of days per pregnancy according to "Naegele's Rule".

Also includes estimated dates for the missed menstrual period and for the range of days the pregnancy-causing "event" likely occurred within.

Plus, you can also select any birth date -- meaning you can calculate conception dates for yourself and others. Want to know what date and day of the week you were likely conceived on? Simply select your birthday (or due date if you were born premature or late) and click the "Calculate" button.

Plus, unlike other conception calculators, this calculator includes select-able dates dating back 100 years. This means it can also be used to calculate conception dates and days of the week for any dates of birth occurring within the past 99 years, which can be useful when conducting genealogy research.

Additional functions include phone and maps, social media, help, notes, announcements and our blog.

This app features easy to use day, month and year date pickers and detailed results.

Keep notes on the 'Notes" page. This is useful for pregnancy planning or saving information about dates and people.

Social media channels allows you to share this app with your friends and family.