Although the egg is only fecundable about 12 hours after ovulation, sperm can fertilize an egg up to 5 days after the report; therefore, intercourse almost 5 days before ovulation can result in pregnancy. Thus, methods based on the awareness of fertility require a lack of intercourses during the 5 days before ovulation.
The condom will prevent the spermatozoa from reaching and fertilizing the egg (physical barrier).
The contraceptive pills disrupt the hormonal cycle.
Fertility awareness can be defined as the set of practices which is used to determine the infertile and fertile phase of women at their menstrual cycle.
It can be used to avoid pregnancy, to conceive or to to have a check on the gynecological health of the women.
It is a way by which pregnancy can be avoided without using pills, contraceptive methods and condoms.
