Telling hubs?

So let’s say hypothetically that you were 4 weeks pregnant with #2 and you and hubs hadn’t really talked about having #2 yet....how would you tell him? He is a loving dad to baby 1 (10 1/2 months old), but probably isn’t mentally ready yet for two. I am SUPER excited! It’s my first cycle off of BC. Baby one took 15 months to conceive.