Before ovulation simply means it's before that secondary follicle actually ruptures and before it releases that secondary oxide into the fallopian tube. Now recall that there are three important organs involved in the menstrual cycle. We have the hypothalamus and the interior pituitary gland found in the brain and we have the ovary found in the pelvic region of that female individual. Now the hypothalamus releases a special type of hormone known as the gonadotropin releasing hormone or GnRH. And what GnRH does is it moves down to the anterior pituitary gland and it stimulates that gland to produce two important hormones the luteinizing hormone and a follicle stimulating hormone. So the more GnRH we have in our bloodstream the more of these two hormones we're going to have in our bloodstream.