How to increase sex drive

Hey y'all. I need help. I am 30 ( 31 on Sunday) and although my husband and I are trying to conceive, I find myself with little to no sex drive. What are some things I can do to increase it? My husband has made the 'you don't love me anymore ' comments because our sex life is slowly dwindling. I do love him, I just find sex to be a give and take sort-of- thing. I went a long time without sex ( I did pleasure myself), so I dunno what gives, or why the change. Help? Please?