Question about FET - Estrace and Progesterone before FET

Hi ladies,

I have my date set for next Friday (2/1) for FET and I’ve been on estrace since Jan 5th - reaching almost 3 weeks. I had to push my transfer out by one more week to get lining thick. Now it’s 8.8 and I will start my Progesterone shots on Sunday - 1/27.

Is it safe to be on estrogen for 21/22 days without progesterone for the transfer? I heard that sometimes it compromises the freshness of the lining.

Has anyone been on estrace for a longer period and had success?

Thanks!