Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents.
The ways in which life on earth creates new life is something that we call “reproduction.” Some parts of reproduction are similar not just in plants and animals, but in all organisms, including single-celled ones.
In order for human reproduction to be achieved, an individual must have undergone puberty first, requiring ovulation in females and the spermarche in males to have occurred prior to engaging in sexual intercourse or achieving pregnancy through non-penetrative means.