We went through with the abortion
Did you feel worse afterwards?
I don't know, man, but it's all in the past now
It's okay to not want to have a child if you're not ready to take care of it.  However, since abortion can be such a hard decision, it would be best to take precautionary measures in the future.
Man, it would be so hard to take care of kids, maybe I'll get a vasectomy.
There is nothing wrong with not wanting to be a parent. If a vasectomy is the right choice for you, then that's great. Just know that you someday might change your mind about kids so don't make any rash decisions.