What can I do to get my husband to stop chronically worrying about my health and our baby's health?

it might seem like he's being unreasonable but for your age, I would act the same. His heart is in the right place by being concerned but it seems as if he's not being reasonable about how much to worry, etc etc. I think you should have a sit down and talk out his issues. Im sure he's just a little extra concerned because your "older"