relationship advice

My SO and I have been together for 2 years now since Jan 29. We haven't had sex since October because I haven't been feeling any sexual desire. I also don't really like it when he gets really touchy like always hugging me or trying to make out. He thinks it's because of my birth control or anti depressants messing with my emotions. I feel like I'm losing feelings. I truly care about him and I don't want to lose him if we break up. What is your advice on what I should do? Please help.