I haven’t told the father of the fetus I’m carrying that I’m pregnant. I know he’ll pressure me to keep the thing and I can’t imagine how angry he’d be if I aborted it. Is that justification for not telling him? We’ve been friends for so long and I’d hate to lie to him, but I don’t want to have a baby.
You don’t want to have a baby. That’s it. That’s all. That’s the only thing that matters. You don’t have to tell him — now or ever — and there’s no need for any justification. This is your choice. Not his.
(You probably will tell him at some point in the future, but don’t worry about that right now. If he won’t support your decision, go do what you gotta do first. Your health and well-being are the only priority. His opinions on the matter don’t even make the list.)