Why and how humans reproduce?

How humans reproduce?
Humans reproduce having sexual relationships with a male or a female reproductive sistem, the sex cells of a male is called spermatozids and the one of the women is called egg or ova (gametes), when the spermatozoid and the ova joins (fertilization) this produce into a new baby.
Why humans reproduce?
Humans reproduce sometimes by having a new family, others for fun, others for feel it, or sometimes other people for do it and no more but this is happen more frecuency in the teenagers because they dont now how to care a baby, so they abort the baby, or they abandon it. But if you have the age to care a baby it don´t have any problem. Finally this is part of the life cycle.