Conception Date Estimation Form
Estimate your likely conception date using your cycle and date information. This tool uses general cycle data and does not provide medical advice.
First day of your last menstrual period
*
 -
Month
 -
Day
Year
2 digit month, 2 digit day, 4 digit year
Date
Average length of your menstrual cycle (in days)
*
Typical luteal phase length (in days)
Are your cycles usually regular?
*
Yes
No
Sometimes
Age range
Please Select
Under 20
20-24
25-29
30-34
35-39
40-44
45 or older
Have you tracked ovulation this cycle?
Yes
No
If yes, what was your estimated ovulation date?
 -
Month
 -
Day
Year
2 digit month, 2 digit day, 4 digit year
Date
Have you noticed any significant changes in your cycle recently?
No changes
Shorter cycles
Longer cycles
Irregular cycles
Other
Are you currently planning a pregnancy?
Yes
No
Prefer not to say
Email address (optional, for receiving your estimation)
example@example.com
Estimate Conception Date
Should be Empty: