Lupron/ Lucrin hell anyone?

After 2 failed FET my doc put me on Lupron for 3months. Itwas a single dose which was meant to be out of my system by end of July. had another failed FeT in August and got AF immediately after. now no AF at all. I am now on day 42 . anyone ever experience this . when will AF return .... I feel like a 5year old boy. menopausal at 32😣