And at this particular point, our estrogen will now create also a negative feedback loop. So estrogen is interesting because it not only creates a positive feedback loop in this area, but it also creates a negative feedback loop in this section here. So at this point we see that estrogen and progesterone create a negative feedback loop and decrease the amount of GnRH that is released. And because we have less GnRH released, that means we'll have less of SSH and LH being produced. Now, it's the LH that is needed to maintain the corpus luteum. And if we have less LH being produced as a result of the negative feedback process, then that means the corpus luteum will begin to slowly deteriorate and eventually it will break down into the corpus albicans.