Changed Libido??

My boyfriend and I have a really strong relationship especially when it comes to sex. It’s great. And I used to get horny like whenever I was with him. However I started birth control the depo shot and my libido is the complete opposite now. I have a harder time getting horny and I hate it because I love having sex with him. He’s not showing that it affects him or anything and he likes being able to not use a condom anymore and he doesn’t mind not having sex all the time like we used to but I actually miss the way I felt before.

Does anyone feel the same or know how to help?