Hi, I Have Been Married For 2 1/ 2 Years.

hi, i have been married for 2 1/ 2 years. My husband have diabetes mostly its was uncontrolled prviously.He lost so much of weight. he is 31 year-old. He is on medications. Now his FBS is 159. Doctor told he may require circumcision. Am trying for pregnancy. But my husband is not at all intersted in sex.I want to ask whether diabetes or ED can cause loss of libido? We never got proper penetration in sex. however v try for sex only 2-3 in six month.i would like to know that he has pysychological problem or it is diabetes or just loss of ineterst. He watches lot of porn.when i encounter with him.he has interset in me but he does not have answer for not having sex