| | Conditions Treatments | Infertility Can a 4 year old make someone pregnant? It is impossible for a 4 year old to make someone pregnant. A person must be through puberty and have reproductive organs that are fully developed in order to conceive a child. Infertility - Related Articles How do you cure a back ache? How to Train to Avert Failure How to Treat Acute Stress Disorder Naturally Mood Disorders and Depression in Children Definition of Dependent for Health Insurance Family Planning & Contraception What is hello in Haitian creole?