I had exactly all the same ideas as all the other wonderful ladies!!!
FWIW though, the more you stress about it, the worse it's going to be. Bub is going to pick up that you're anxious & may fuss over her feed, etc...
So, try & stay calm & relax. DD1 is 2.5 years, it's not horrible to make her wait, you know? I mean this in the nicest of possible ways. lol
I'm sure it's not going to take long!
Good luck! xx