Listen babe, it is very easy for a woman to count her circle, if u follow dis guide lines well I'm sure u won't find it difficult with counting ur circle.

Get a calender and count 15days including the first day of ur period.

Check mark d 15th day

Also check mark 3days to dat 15th day

Check mark 3days after the 15th day

U will find out dat u've checked marked 7days already

These 7days are known to be ur ovulation/fertile days, it is also known as ur unsafe period meaning if u have sex any of these days there is a 90% chance of u getting pregnant. Any other day apart from these important 7days are ur FREE PERIOD.