Fertility awareness involves the woman being observant about different pointers during her menstrual cycle. This method is not the safest.
Studies have shown that a woman is less likely to get pregnant few days after completing her menstruation but very fertile around 12-14 days before her next period comes up.
This form of birth control doesn’t involve altering hormonal systems or blocking sperm from fertilizing an egg
Approximately one billion oxygen molecules. that is because there are about 250 million molecules of haemoglobin in each cell, and each haemoglobin molecule binds to 4 oxygen molecules
