Why is Lupron decreased

Hi there,

I was wondering why you decrease the dosage of Lupron once the Estrogen begins? I struggle with a thin endometrium lining and was reading your protocol for FET. I was wondering if the reason why my lining may not get so thick is because the Lupon dosage that I took is 10 IU 5 days prior to stopping birth control and then remains the same amount instead of decreasing it once estrogen starts. I have had multiple hysteroscopies and no longer have scar tissue. I also did a mock transfer and they did not detect endometriosis or endometritis. Curious if the lack of decreasing the Lupron might have something to do with it? Thanks or your help!