well i don't know if it work but i know about its depend on you rather---let say you have a 28 cycles your chance to get pregnant will be up to 14 days after your last period and you count from the first day of your last period...so it takes from 8 days to 16 days after your period-- you should make your owed calender you should write down when you start to ovulation how long your period last...was it spotting medium-heavy period--this well also help you to get pregnant also... i wish you the best of luck
Pregnancy Calculators have progressed over the years as technology advances. The current pregnancy calculators today have been scientific proven to be accurate or at least close to the accurate.
Not always but they claims it's about 90%
A conception calendar is used to estimate when a baby was conceived. It usually uses the date of a woman's last menstrual period to estimate conception and due date.
The Egyptians developed the first accurate calendar.
very accurate :P
The development of the accurate calender was in 450 B.C.
Our calendar is incompletely inaccurate.
The Mayans
they were just as accurate as the one we use now with 365 days
The Iranian (Persian) Calendar, is the most accurate and one of the oldest (as far back as 2000 BC Zoroastrianism) calendars.
The Aztec calendar recognised 365 days
calendar
Egyptians