Menstrual Cycle Forecaster

Use this page to forecast potential cycle days in the future. Useful for planning trips or parties a few months in advance. Click on any day in the calendar and we will identify potential cycle days for someone on a typical 28 day cycle. * Because a cycle can deviate from 28 days for each month in our forecast we widen our range of the estimated start date.


Sorry for the poor formatting - but once you select a date below, click this to start the set-alert wizard.
March 2025
M T W T F S S
12
3456789
10111213141516
17181920212223
24252627282930
31
 
April 2025
M T W T F S S
123456
78910111213
14151617181920
21222324252627
282930
May 2025
M T W T F S S
1234
567891011
12131415161718
19202122232425
262728293031
 
June 2025
M T W T F S S
1
2345678
9101112131415
16171819202122
23242526272829
30
July 2025
M T W T F S S
123456
78910111213
14151617181920
21222324252627
28293031
 
August 2025
M T W T F S S
123
45678910
11121314151617
18192021222324
25262728293031