Infertility is a condition of your reproductive system that causes people to be unable to get pregnant (conceive). Infertility can affect anyone and has many causes. Getting pregnant involves several steps:

Your brain must produce reproductive hormones that control ovarian function.
An egg must mature in your ovary.
Your ovary must release an egg (ovulation).
Your fallopian tube must pick up the egg.
Sperm must travel up your vagina and through the uterus to your fallopian tube.
The sperm fertilizes the egg to create an embryo.
The embryo travels through your fallopian tube to the uterus where it implants