This chart is an example of a healthy cycle with conception. Remember every woman is different so you could have a perfectly healthy cycle even if it looks a little different. This woman had unprotected sex during her peak fertility, making her chances of getting pregnant very good. After her peak day it is apparent that ovulation has occurred. Her luteal phase is twenty days showing that she did conceive!
What is going on in this chart?
1) Low temperatures, and increasingly fertile cervical fluid in the follicular (preovulatory) phase.
2) Unprotected sex during the time of peak fertility, while cervical fluid is very fertile, and before the temperature rises.
3) These higher temperatures indicate that ovulation has occurred. Her luteal phase is currently 20 days long. Luteal phases of more than 18 days, in most cases, indicate pregnancy. This woman is pregnant! :)