So we got a bill/agreement from our hospital with an "estimate" portion we'd have to pay and estimate of what our insurance will cover (we have PPO). I thought "that's not as bad as I expected..." but DH said it's just an "upfront bill" they want us to pay NOW before we deliver. And that later we'll get a bill for the rest of our portion. Is that normal? For moms who had PPO, did you have to make 2 different payments?