Hi,
Anytime you experience a low sex drive or lack of desire, consider any physical or psychological factors that might be happening in your life. Health issues, a recent illness, an injury, and any side effects from medications or birth control can have a negative impact on sexual desire. Emotions can also play a big part in how we respond to pleasure in our relationships. Stress, anxiety, depression, boredom, or feeling a lack of emotional connection with a partner can often result in no sexual desire. So, there's a lot for you to consider when it comes to figuring out what the cause is here.
If there are no clear or obvious answers that you can attribute to your lack of sexual desire, then you should consider speaking with your doctor about any possible issues that may include thyroid function or low hormone levels.
Best of Luck
You don't mention your age. You may just not be ready for at least some sexual experiences. Of course, everyone has their own sex drive which can come and go as time goes on. At this time, sex may not be high on your interests and there is nothing wrong with that. It is never good to rush into intercourse. There are other sexual practices that you and your boyfriend can engage in.