Femara + Clomid + Estrogen

Anyone ever do this? I did Femara 2.5 cd 5-9. Went today for my scan on cd 15 and my numbers were awful. No mature follicles, thin lining. Doctor recommended starting Clomid today for 5 days, then Estrogen for 10. I have another scan in 8 days to see if anything is happening.

He called it a “clomid restart”. I’m going to do it, but didn’t know if anyone has ever done or heard of this.