If you both - that is he, also - REALLY wants you to be pregnant, then what's the problem?
When a woman has hesitation about the announcement, that means she KNOWS that he won't be happy about it, even though he may try to put a good face on it. Any cutesy little announcement scenarios are ridiculous.
If you know/think that your hubby won't be happy about it, you should say, "I'm pregnant. We need to schedule an abortion." (Assuming you are not a typical religious wacko and/or a bimbo with a "need to breed" that overrides rational thinking.)