The best replacement for fertility is age.

The best alternatives to fertility are rated as following:
★★★★★  age
★★★★★  fecundity
★★★★  ovulation
★★★  infertility
★★  soil productivity
★  mortality
★  age graph
★  sterility
★  peak fertility
  acupuncture
  birth rates
  shady grove
  strong fertility
  age chart
  ovulation period

Your alternative for fertility is not listed? Suggest!
Speaking about fertility, one probably shouldn't forget about one ovary.

Other search terms related to fertility and their ratings are:
★★★★★ one ovary
You have in mind a companion for fertility and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of fertility in all years. Click on graph for more.
fertility
age
fecundity