Fertility Calculator

People often wonder "how can I get pregnant, how can I conceive, what's the best way to get pregnant?" This simple fertility calculator will help you pin point your most fertile time of the month.

Please note: This calculator only really works if you have regular periods. if your periods are irregular, then I am afraid you will have to use more complicated techniques, like fertility testing kits.

STEP 1
Enter the length in days of your period (this is the number of days from the start of one period to the start of the next one.

Length of period : days

STEP 2
Now select the START date of your period by clicking on the date
(either the last one or the next one:)

< May 2013 >
Mon	Tue	Wed	Thu	Fri	Sat	Sun
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	7	8	9

KEY

Today

Your period start date

STEP 3