What to do

I would complain simply because it is a privacy issue and what if it was a situation where someone had a stalker and they gave that person that info or an even worse situation. I would 100% notify the hospital because that is a HUGE issue and they need to know, in order to either train the person if they are new or reprimand them

It's a breach of confidentiality. They legally aren't allowed to do that.

I think either your parents told her or she called the hospital pretending to be you. Seems really unlikely they would have just given that info out to a random.

That is a breach of confidentiality. I’d be putting in a complaint as that isn’t right especially if she isn’t listed anywhere in your forms nor has she got permission from you to be given information about you x

OMG thats such a massive breach. Theyre not allowed to tell people who arent the patient details about the patient without getting the patients consent. Like someone mentioned what if you had a stalker or an ex abuser you hadn't told them about and they were going to come on thag date to the hospital. Its dangerous!

Put in a complaint wtf !

Make a complaint to Patient Advice and Liaison Service (PALS) (NHS hospitals all have this) for sure. They have broken multiple laws such as GDPR, common law duty of confidentiality as well as NHS confidentiality rules. This could potentially have put you and your baby at risk had this been an abuser etc. Even something that seems small (like a date) is still protected if it reveals you’re undergoing treatment—so don’t let anyone dismiss it as trivial. I'm actually raging for you, confidentiality is the very basics of patient care and if they can't do that I would be questioning everything.

I would definitely complain that's against so many rules and patient confidentiality! What if she was an actual stranger or a crazy person 😰

Wow that is so so bad!! And how nosy is your sister?! I would definitely complain.