Psychosexual Problem. Should i consult?

My husband going through lot of stress these days.   We are married since 7 years and last 2 years he kept on saying he doesn't want kids and i want kids. This has created lot of differences in our relationship and ultimately there is no intimacy left among us.  Its been more than 2 years we havent done sex. He keeps saying he doesnt feel attracted to me anymore.  Oncer is arrange marriage and we had good relation for initial years.  But talking about kids have always stressed him. He likes me and he doesnt want to see me unhappy. He has no reasons for not having kids, only thing he says he doesn't want any responsibility. He is not a very outgoing person or a party person.  He doesn't smoke or drink. He likes spending time with family. But recent days he says he doesn't feel like doing anything. He doesn't want to do anything extra apart from office and playing video games.  He is playing too much of video games and that is how he is fighting with depression. Whom should i consult?