There is no shame in aborting or losing a baby, I'm sorry you feel that there is, and obviously I hope everything goes well for you, but saying that you'd feel shame is a bit awful to those of us who have lost babies or had terminations for medical reasons or personal choice.
You feel a lot of things when you lose a child, but shame shouldn't be one of them.
I'm speaking from experience here because I lost two babies at the 22 week mark, long after everybody knew we were expecting them, and it can be easy to blame yourself when you're looking for answers but not getting any, so having someone talk about shame doesn't help.
I can understand you feeling that you've lost some control of your own body by being pregnant, but I think you're expecting a lot from your husband.
I do feel very strongly that a pregnant women should be in sole charge of her own body and choices and medical information in a physical way but your husband is this baby's father and you seem to want to control every detail.
In the long run, him telling someone a week earlier than you agreed to isn't the end of the world, but with you saying that you have control issues and you're feeling like pregnancy has taken your control away, and you're talking about how you would feel shame if something went wrong, perhaps you might look at having some counselling to work out what's going on for you right now.
This pregnancy has clearly stirred up something for you and you might feel better to understand what and why before the birth.
I wish you well for the rest of your pregnancy OP, but I think it will go better if you can relax about whatever this issue is that you have.