Health Tools
Ovulation & Fertile Window Calculator
Calculate your ovulation date, fertile window, and next period based on your cycle length
Your Cycle Details
28
Average: 28 days
14
Ovulation: day 14
Fertile Window
Current phase based on your cycle
Key Dates — Current Cycle
Last Period StartedMar 19, 2026
Fertile WindowMar 28, 2026 – Apr 3, 2026
Ovulation DayApr 2, 2026
Next Period ExpectedApr 16, 2026
Next Fertile WindowApr 25, 2026 – May 1, 2026
Next OvulationApr 30, 2026
March 2026 Cycle Calendar
Sun
Mon
Tue
Wed
Thu
Fri
Sat
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
Period
Fertile
Ovulation
This tool is for educational purposes. Cycle predictions are estimates. Consult a healthcare provider for fertility planning.
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