Thin Uterine Lining?? Sad and defeated

Jill
Has anyone dealt with this?   I have done 2 <a href="https://glowing.com/glow-fertility-program">IVF</a> cycles and 2 FET we can never transfer because my uterine lining is never higher then 5.....
Any knowledge or experience with this would be appreciated because they mentioned I might need a surrogate and I just feel so sad and defeated