Embarrassing question

Hi I have an embarrassing question. I’m in my late 20’s and recently got married. I decided to wait for marriage to have sex and I know my husband had quite the past so he’s pretty familiar with what he likes and doesn’t. He’s very patient and is so sweet but I can tell he doesn’t enjoy sex with me. Is there classes or anything I can take to become more flexible/learn to move correctly? Anything will help