Baby Birthday Conception Calculator. Since the exact date of conception is hardly ever known, the conception calculator can use the first day of the last menstrual period (lmp) you have to determine the range of days in which conception would have occurred. Ovulation after the first day of last period before.

You can use the conception calculator to get an idea of around when you conceived.based on that date you can make a guess as to who the father is, but it will only be a guess. The due date is calculated by adding 40 weeks to the date of. This is about the time of my change of partners, who is the father?

But once the baby crosses the 18th week, it is difficult to figure out due date using ultrasound.

Day groundhog day valentine's day president's day saint patrick's day easter earth day cinco de mayo memorial day mother's day father's day flag day independence day labor day columbus day halloween veterans day thanksgiving christmas Use this pregnancy calculator to find baby due date and/ or conception date from menstruation date. Conception calculator this conception calculator tells you when you were conceived or in case of expectant mothers, when they conceived their baby. (probable period of conception defined from 240 to 300 days before delivery).