Heartbroken

My husband of 7 years, together for 12 total and after a year of ttc, tells me he really doesn't want children, feels we've grown apart and are just going through the motions. He wants to be alone as he's no longer happy being married. He won't go to counseling, he won't try anything. I'm devastated after spending almost half my life with him. I don't know what to do. Any suggestions to try and change his mind?