I think the combo of antibio's and immunisations are ok, but I would ask whether she's well enough in herself to have them? If she's on ab's, has she had a temp recently? You should wait a week or 2 after them having a fever to get the imms. We are rather overdue also
but Nat has always reacted badly to them, and since she's been sick lately, I'm waiting till after Xmas!
Don't want to put you off though - maybe check with your doc or healthline?