Pregnancy Calculator by due date

Enter the mother's pregnancy information into Pregnancy Calculator by due date and it will provide an estimated conception date, birth due date, and an estimated current fetal age. Great for all those mothers-to-be!
Last Menstrual Period: 
(MM/DD/YYYY format)

Average Length of Cycles:   
 (22 to 45)
Average Luteal Phase Length:
 (9 to 16)
Estimated Conception: Estimated Due Date: Estimated Fetal Age:

How is the pregnancy due date calculated?

the best way to estimate your due date is to count 40 weeks, or 280 days, from the first day of your last menstrual period (LMP). Another way to do it is to subtract three months from the first day of your last period and add 7 days.

Can you feel pregnancy symptoms at 3 weeks?

3 weeks pregnant, a belly isn't really a thing. Though you may feel a bit bloated, most pregnant women don't start to show until around week 12