I had a similar experience for a little over a year. I think other commenters have given a good overview of possible things that might be contributing to the problem, but I just wanted to hop in and say that this is an area that deserves both of your effort to communicate with each other and be on the same page. It’s important!
I would caution you to not have sex that leaves you feeling used, sad, or disconnected from your husband. This is something I didn’t realize it was okay to do, and I could have protected myself from emotional trauma and influenced change by setting a boundary for myself earlier.
Lastly, I recommend both spouses reading The Great Sex Rescue. Growing up in purity culture era, my husband and I realized that we needed to unlearn quite a few things and we are so much better and more connected for it. Ooh and the kindle version appears to be on sale today!
I posted this elsewhere in the thread, but get this book, written by women for women. It will give you a place to start. I'd recommend: The Great Sex Rescue: The Lies You've Been Taught and How to Recover What God Intended. They also have a website/podcast. https://www.amazon.com/dp/B08CJC5SNZ/ref=dp-kindle-redirect?\_encoding=UTF8&btkr=1
And go to this website, https://newlife.com/ Search it, read it, get the books listed on it from the library or buy them. Listen to the radio show/podcast, next to people praying here, this will help and they are solidly biblical in their advice.
John Gray is a pagan who studied under an Indian Guru. He advice sounds good, feels good, but it isn't biblical or Christian. David Coory seems to be another self-help guru that mixes in a little of this and a little of that, vitamins, gluten free and of course some bible. He wrote the Condensed Bible so "At last you can read the whole Bible, and you won’t be bored" What does Revelation 22:18-19 have to say about that.
I'd recommend: The Great Sex Rescue: The Lies You've Been Taught and How to Recover What God Intended. https://www.amazon.com/dp/B08CJC5SNZ/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1