Awww don’t be disappointed Hun, you do have a bigger implant so it had got to have made some difference.
Just think about all the people that wear the wrong bra sizes I’m an A cup but I can wear a B cup I shouldn’t wear the B as it isn’t my size but it doesn’t look daft on, you will be able to squeeze your new boobs into your old bras but I bet if you go and get measured when your 6weeks PO you will be presently surprised 😀