no libido/alternative estrogen replacement

Can anybody please advise me as to a good natural alternative to estrogen? I had Breast Cancer that was ER+ (estrogen receptive pos)which means my tumour was dependant on estrogen. Instead of chemotherapy I decided to have a radical hysterectomy to eliminate as much estrogen from my body as possible but now I have zero libido. Please advise, it is a strain on my marriage. Thank you.