I don't see that his text deserves any reply at all.
He tells you to inform him when the confirmation letter arrives, so if and when it does, just forward it without comment.
He asks you what you want to do about the pregnancy, but then tells you what he wants you to do, this is just emotional bullying of the most despicable kind. He is desperately trying to keep you as vulnerable as possible, hence wanting to make you wait to talk early next week, and I think the inappropriate tone of that question is appalling, absolutely no empathy there at all, as though he were arranging a game of squash.
Like all bullies though, he is actually weak, and you can see a glimmer of his weakness where he says there is not a problem with either of us, I can't imagine he was ever strong enough to admit to himself that the problem might be his.
He's hoping to talk to you to influence your decision, but this is after he has abandoned you in the most abominable way, so do you need to listen to him? Do his opinions still matter to you?
You are strong and brave and clever and will find your own path through the bomb site he has made of your life.
Be gentle with yourself Lou, I'm off to eat a boiled egg now!