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Ovulation Calendar

Use this handy Ovulation Calendar Calculator to estimate your cycle phases and cycle dates.

Date of your last period:
/ / (mm/dd/yyyy)

The average length of your cycle:

< Aug 2022 >
Sun Mon Tue Wed Thu Fri Sat
1 (20)2 (21)3 (22)4 (23)5 (24)6 (25)
7 (26)8 (27)9 (28)10 (X 1)11 (2)12 (3)13 (4)
14 (5)15 (6)16 (7)17 (8)18 (9)19 (10)20 (11)
21 (12)22 (13)23 (O)24 (15)25 (16)26 (17)27 (18)
28 (19)29 (20)30 (21)31 (22)

The Calendar Method is the easiest way to chart your cycle. This involves keeping a written record of each menstrual cycle on a regular calendar. Use the ovulation calculator to help visualize cycle phases. On any calendar mark the first day of your period with an X, this is Day 1 of your cycle, continue to count the days until you start again. Divide total cycle days by 2, giving you an estimate of when ovulation may occur- approximately day 14.

Green represents the follicular phase, pink represents the luteal phase and deep pink color is when estrogen and progesterone are at their highest levels and when most PMS symptoms are experienced.

There are many other methods to determine ovulation and cycle phases. There are also several on-line fertility tracking websites you can subscribe to that are very helpful. The calendar method however is the simplist, everyone has a calendar or day planner. You might also consider purchasing a Cycle Diet Calendar Bracelet, see the link on the left for purchase information.

Follow your own cycle to determine when you start and stop your cycle. Some women may have anywhere from 22 to 38 day cycles, but are fairly consistent. If you have an inconsistent cycle, please see your OB/GYN for possible problems.

Common Cycle Disturbances:

1) Low body fat % to weight

2) Strenuous and consistent exercise (seen in professional athletes, usually linked to number 1

3) Low carb dieting, severe low calorie dieting

4) Menopause-perimenopause

5) Illness

6) Pregnancy

7) Polycystic Ovaries

8) High Stress

9) Undiagnosed gluten sensitivity, Celiac Disease or malabsorption

10) Undiagnosed autoimmune syndrome/disease

Date of last modification: 5/1/2013