several problems I see here first the anti abortion false moralism here, saying its a murder and well murders are part of life you murder others to live or if you live on US to keep your way of life, deal with it.
@cheeks
both of you are at failed here both wanted the kid but both was scared, she could have the kid if she wanted but she was afraid of or losing her fun life part, losing you, or she notice she was growing up, and you was afrad of thing to change and was coward enough to not be the man and state your mind.
now what you can do or say to make things better? nothing from what I saw and know most of time a couple will break apart when they lose a child, one parent will always blame another, like "I told you to not him go to that place", or "I never liked the people he hang out and you did nothing", don't matter if the blame is right or wrong, if t you deserve it or not people will blame others for his problems.
by numbers alone, you 2 have huge chances to not be together anymore, and only reason you both are like this now is both don't know what to do.
you have only 2 choices, do nothing, let time pass and see what she do, or simple break up and move on, both move on with his life and learn from it. past mistakes can never be fixed, just learned from and make sure you ahve the courage to make the right call next time.