Ideas on how to tell my significant other

So, I am well aware of where babies come from. With that said a pregnancy was not really in our plans right now. We just settled into our house and I've started a new job (without insurance) I just found out and don't want to keep it from my boyfriend but would like suggestions on how to bring it to him in a way that may make it easier. He will be an amazing father I'm just not sure he's ready for it now.