Carolyn Ledowsky is the founder of MTHFR fertility, MTHFR gene support and MTHFR support Australia. As an MTHFR researcher, trainer and presenter, I am committed to teaching everyone I can about how and why the MTHFR genetic polymorphisms may affect your ability to fall and stay pregnant. Up to 65% of the population have this gene variant that affects your folate. So this is relevant to all couples.