You might be in a phase of life where you’re not entirely sure what you want things to look like in the future. What kind of job do you see yourself in long-term? Do you want to live in the city or in a quieter area? Do you want kids someday? While you might not know for sure if you want a child yet, it might be helpful to know what to expect in the event that you or your partner decide to get pregnant.

One thing to be aware of is, polycystic ovarian syndrome (PCOS), the most common hormonal disorder of women in their reproductive years, affecting 5 to 20 percent of that population, Mark P. Trolice, M.D., tells Bustle.

Read the full Bustle article to uncover eight health problems that can make it harder to get pregnant.