Now notice what it does to the hypothalamus and to the interior pituitary gland, the progesterone as well as the estrogen that is produced by the corpus luteum. Now, instead of creating a positive feedback loop as it did before Ovulation post Ovulation these two hormones create a negative feedback loop. So they basically cause the hypothalamus to release less GnRH. And so because we have less of this we're going to have less LH and FSH stimulation and these also directly affect the interior pituitary gland. So that means once again we'll have less LH and less FSH actually form. Now, what exactly is the result of that?