Would Us Be Here If Our Parents Had Not Meet/Met?

The knowledge of knowing that each and every egg was placed in a woman’s womb before she was born makes me wonder about our existence being here as individuals. It is my belief that if both parents did not have intercourse, then that egg would miss been furtilized just like the many eggs which had missed coming into existence because of the missed opportunity of been furtilized and so had gone to waste. It is a fact that some of those eggs are/were spoilt eggs and so not all of them would have been furtilized. It is some persons belief that if mother’s and father’s had not meet/met then the child/children would not be born, while it is others belief that yes, we all would still be here but would be having different fathers not only that but we would look different with different complexion, different voices and different pattern of behaviour. Some maybe shorter or taller. Many of these eggs we were taught are inside a woman’s womb and each month most women would have a period as an egg becomes mature because these eggs become mature every month for most women and as for the older women near menopause their eggs became rotten and when she passed the very last one she ended her journey of becoming a mother of a new born again. I am fascinated by these thoughts and often wonder if inspite of the odds if we would still be born. ” Everything give/thought Tom one day”. The cow gives milk, the field gives hay, the stars give beauty to the night. Maybe someone in the medical field would be able better to explain it. However, what is your opinion on the matter?