This guy is someone who I honestly don't plan on committing too. I was just dating him and I don't see myself in a relationship with him any more.

He is a nice guy but we want different things in life right now which are topics we feel really strongly about. He's at the stage where he is ready to build a family and I am not. I think he deserves someone who will commit to him and his current goals.
I don't want to waste his time if I am not ready. I am still working on myself and having kids for me right now is not an option.
I feel bad that I will be doing this behind his back even though I am already ending the relationship. I just don't know if I tell him he would still be willing to support me. I feel it would be hard to convince him since I know he could never talk me into continuing the pregnancy.