Diane,
I am sorry you have such rough news. It sounds like you have reasons for the red flags to start popping up. But, it also sounds like the team is on top of it. Take out a pencil and piece of paper and write down absolutely every question you have. Call the doctor and ask all of them so that you have all the cards on the table and can have somewhat peace of mind through a very difficult time.
It is okay to worry, even quietly, given the information that has been presented to you. Try to use this time to get the answers you need. Your husband is so fortunate to have you by his side right now. Be as strong as you can but remember you are only human. Or, as my wife always says, you don't have to jump out of a phone booth with the big S on...all the time, at least

. Hang in there, we are here to lean on whenever you need it.
Ed