Husband never initiates sex with me

Hey ladies, so my husband and I have been married for almost two years now. We don't have any kids yet but would like to have them. However that would require more sex! Lol. I'm not pressuring him by any means to have sex with me or anything I just tell him that my sex drive is higher than his. That's just how I am. His sex drive is lower. He's ok having sex once a week. I want it three or four times a week. I've told him this and he says sorry I'll try harder. Guess what then he never does. It makes my heart sad cause I want to be wanted by my husband. I do love him very much but I don't feel like I'm desired or that he thinks I'm sexy. I know I'm an attractive and fit woman he just doesn't have the urge to have sex as much. I'm really sad. I've tried mentioning therapy for this issue a couple months ago he said let me think about it and he never told me an answer. I'm heart broken cause I can't continue to be with someone like this even though I love him so much. Any suggestions please?!