Ovulation Calculator
Use our ovulation calculator to find your most fertile days and the best time to conceive. Enter the first day of your last menstrual period and your average cycle length. Your most fertile days are in light green, and your estimated ovulation date is dark green.First day of last menstrual cycle
Number of days in cycle
| < | July 2011 | > | ||||
|---|---|---|---|---|---|---|
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 26 | 27 | 28 | 29 | 30 | 1 | 2 |
| 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 | 1 | 2 | 3 | 4 | 5 | 6 |