Talk to Urologist on Erectile Dysfunction

My husband is 28 years old with no medical history. We got married 8 months ago. He is facing issue of erectile dysfunction. Even when he feels erection, he looses it right after touching me. Also, he do not ejaculate every time we come close. At most he ejaculates once in a month. Sometimes he seems healthy sexually but mostly he faces this issue. In these 8 months we hardly had proper sex for 5-6 times. He is shy and dont feel comfortable in visiting a doctor personally. He has started walk from a month and is taking good care of diet (fruits, meat, vegetables, egg). Kindly suggest us some cure. Suggest us if there are any necessary tests which we can show you here and get guidance as he is not comfortable in seeing a doctor. Thankyou.