Husband feels an emptiness inside and doesn't know if he wants to stay married anymore . I'm in shock and heart broken

My husband told me he feels empty inside and is bored and doesn't know if he wants to stay married doesn't know if he loves me anymore, this is just come as a shock as we have been trying to conceive for the past 6 months . I'm so heart broken he doesn't feel that marriage counselling will work does anyone have any advice I want to try and save my marriage we have been married for 3 and a half years