If you assume she is fertile, you will have very few problems.
Most fertile is the superlative for fertile.
more fertile, most fertile
Orientals are the least sexually active and least fertile. Blacks the most sexually active and most fertile. Whites are intermediate.
The most important factor of making Mesopotamia's farmland fertile was water.
in cannda
During "that time" of the month thats when she is most fertile
State of Punjab in India has the most fertile land in South Asia.
The most fertile soil is found around the Nile delta.
Most deserts have fertile soil but need irrigation to grow plants.
They came from the Fertile Crescent
Most.