Normal not to feel like having sex... ever?

I don't know if it's my birth control or.. what. But whenever im with my boyfriend i never want to have sex. I wish that I would, but I never feel like it. And I feel bad because I talk all this talk about giving him the best he's ever had over text, but when I actually see him i just want to chillax and watch movies. I love him and attracted to him in every way it just sucks that I don't have that drive anymore. What can I do?