Fertility is a massive subject with too much info to type out in the FORUM. It would need a consultation w=to really get through all the different root causes and imbalances present in someone who has infertility.
The most important place to start is diet and making sure both male and female are eating really nourishing foods with LOTS of healthy fats from wild caught fish, nuts and seeds.
The women can seed cycle paired with the homeopathics mentioned for female hormones in the RESROUCES tab. She can do this for a year+ and see if that helps balance hormones,
For men, they need zinc picolinate, cod liver oil, antiinflammatories and a multivitamin.
Both parties should get their hormones but also their heavy metal toxicity levels and trace mineral deficiencies tested accurately. Copper is often at the root of infertility especially for women.