Fertile a. : Producing fruit or vegetation in abundance; fruitful; able to produce abundantly; prolific; fecund; productive; rich; inventive; as, fertile land or fields; a fertile mind or imagination.

Fertile a. : Capable of producing fruit; fruit-bearing; as, fertile flowers.

Fertile a. : Containing pollen; -- said of anthers.

Fertile a. : produced in abundance; plenteous; ample.

Example:
How do you determine how Fertile you are without going to the doctor or having fancy gadgets?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, tile, webster, bearing fruit, Middle French, Latin, Word Games, adjective, Webster Online Dictionary with audio pronunciations, Middle English, fertile soil, spores, fecund, offspring, rapidity, glossary, language.

Defination from the web:
fertile from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... synonyms fertile, fecund, fruitful, prolific mean producing or capable of producing offspring or fruit. ...