The first step of treating infertility in many cases is to treat the underlying cause of infertility. For example, in cases where thyroid disease causes hormone imbalances, medication for thyroid disease may be able to restore fertility.
The first Dark Lord of the Sith was Ajunta Pall, a fallen Jedi and leader of the Dark Exiles. Ajunta Pall was a former Jedi Master following the First Great Schism who was very much into the teachings of alchemy. He eventually discovered the way to create and shape life, something his successors would attempt to learn themselves for eons.
Guion Bluford Jr. was the first black man and Mae Jemison the first black woman to travel in space (in 1983 and 1992, respectively). Bluford is an engineer and was a colonel in the United States Air Force before participating in four space shuttle flights.