Simcha Fisher blog post

Written by:, PhD, Founder and Inventor of the Proov test — the first and only FDA-cleared test to confirm successful ovulation at home.

This at-home ovulation test could be an NFP game-changer
Here’s some amazing news for couples who use NFP: the Marquette method, which measures estrogen and LH in the urine, is about to get more effective…
Read more here