Ovulation date Natural Standard Monograph, Copyright © 2011 (www.naturalstandard.com). Commercial distribution prohibited. This calculator is intended for informational purposes only, and should not be interpreted as specific medical advice. A qualified healthcare provider should be consulted before making decisions about therapies and/or health conditions.
First day of last period (mm/dd):
Days in menstrual cycle:
Length of luteal phase (if known):
Results
Next Period:   Ovulation:   Range Begin:   Range End: