They produce and release special types of hormones known as the female sex hormone. So they produce estrogen as well as progesterone. Now before we discuss what these two hormones are and what their function is, let's briefly discuss the structure of our female reproductive system. So we have two ovaries inside our female reproductive system. We have one and we have the second one. So inside the ovary, we basically have the maturation and the production of the excels, our ovum.