@Justbackfromnewwine
From a married Christian perspective:
I would second recommendations to look at The Five Love Languages. Even before/instead of reading the book, you and your husband could take the online quiz together and have a chat around your results!
www.5lovelanguages.com/profile/
Just to clear the air of any false assumptions that may arise/have arisen: Has your husband ever forced himself on you, or made you do anything intimately which you did not want to do? Has he lashed out in anger or in anyway punished your for not wanting to be intimate? Do you feel unsafe or coerced?
If any of those things characterize your relationship, I would echo the warnings and sentiments of others on this thread: You should never feel that you 'must' have sex with anyone, that you don't have a voice, that your needs and wants are not or less important.
However, if instead it seems that your husband is just pretty constantly down to sex, and thus pretty often sexually frustrated or feeling rejected or deprived, I think that is an entirely different situation, and I will not speak of your husband in anyway which suggests he is sexually exploiting or manipulating you.
I can entirely relate to the mismatched libido which you explain. My DH says he would ideally like to have sex everyday to every other day. And that's simply normal for men (at least, so says research, and a scroll through any chat room on the subject). Men want sex/think about sex far, far more than women: journals.sagepub.com/doi/abs/10.1207/s15327957pspr0503_
I genuinely want sex (feel spontaneously horny) very seldom, think about it almost never, largely could go without it.... buuuut, I have strong suspicions that there are reasons for that beyond my "natural," baseline sex drive.
And I suspect there are external reasons your sex drive is so low, too. Not feeling emotionally close with your husband, not feeling appreciated, not being romanced, not feeling supported, not feeling respect for your husband--none of those are conducive to being in the mood. And mood matters A LOT for women, where it doesn't for men. Sex is far more complicated for women than for men. These are not simply unfounded cultural stereotypes! Read the research! This WebMd articles gives an overview of some interesting and relevant findings: www.webmd.com/sex/features/sex-drive-how-do-men-women-compare#4
A distinct issue which I experience myself is lack of orgasm. I am convinced that if I knew every time I had sex I would reach a delicious orgasm, I would want it A LOT more often. But reaching orgasm tends to be frustratingly difficult for me, no matter what level of patience, effort, and creativity my husband exerts. I am too much in my head. Is this something you have thought about when reflecting on your own libido? Have you considered what it is that turns you on, and what it is that turns you off, or makes it difficult for you to enjoy sex? What could your husband do to make sex something that you do not "just for his sake," but because you genuinely enjoy it?
These are questions I know I need to explore more for myself and in my marriage, and I am seriously considering taking the issue before a sex therapist. DH and I are currently abstaining from sex for entirely separate reasons (scar tissue from having baby which has made it intolerably painful for me to have sex, waiting to have it dealt with in hospital asap), but if once I am ready to start having sex again, my own issues with intimacy persist... I am 100% going to a sex therapist with DH. I would strongly encourage you to bring this up with your husband to see if he might be open to it!
From what I have read, the majority of sex-related issues are rooted in general relationship issues. If you feel like you're at a breaking-point and need help, leaning on your church community is great, but you should really consider the expertise and focused care you could receive from going to a couples or sex therapist, whether Christian or secular.
Until then, I would try your best to be open and honest with your DH. Tell him how you feel, and that you deeply want things to be better for your relationship as a whole, including your sex life. You want to get there. But it's going to take work from both of you.
Will be saying a prayer for you and your husband tonight, as well as the countless other marriages which I am sure face similar difficulties. We all need God's grace, not only in our individual lives, but in our marriages.