If your partner is not responding to you, stop to ask if what you are doing is okay. Sexual Health Sex is associated with a lot of pleasant things - being in love, feeling attractive, having orgasms, getting pregnant, being cool. Sex is also associated with a lot of unpleasant things - sexually transmitted diseases, shallow relationships, getting pregnant, feeling guilty. It's up to you to get what you want from sex. It is also up to you to avoid what you don't want.
Communication is key.
Understand for yourself what your limits and boundaries around sex are. Protect yourself physically against unintended pregnancy and STD's. Protect yourself emotionally. The best sex happens when there is trust and emotional as well as physical intimacy. Communicating all of this with your partner needs to happen before you ever become sexually active.