Lining too thick to start Letrozole

Katie

I completed my first medicated cycle last month (Letrozole, dexamethasone and Ovidrel trigger shot). Everything went great with my monitoring and ovulation, but we did not get pregnant. The plan was to try everything again. I started my period on cycle day 27. My period was heavy for 2-3 days and when I went for the baseline US, I was told that my uterine lining is too thick to start the Letrozole again. I have to wait for a consultation with my RE. Did something like this happen to anyone else?? I don’t understand why the lining didn’t thin out. (I have gotten negative home and blood pregnancy tests as well) I feel so disappointed...