How Occurrence of Pregnancy?

Pregnancy occurs when sexual intercourse during the woman's ovulation or the fertile period (a condition where the uterus to release the egg) and sperm (semen) from the male to fertilize the egg from the woman's page.

The fertilized egg will attach to the uterine wall, which will grow and grow for approximately 40 weeks (280 days).

So even though the couple only has sex once a month but the execution of official wrote right at the time of ovulation or the fertile female, the possibility for the occurrence of pregnancy.