Jade, I hope everything is okay! Don't worry though, if you do end up postponing - we just had to and I have to say, I am very glad we did! My son is still sick and his ears hurt, so it would have been a nightmare.
If you do end up postponing, you are still going this year and Christmas is a great time to go to DL! You could still do DL for Halloween next year if you get APs in December.
It will all work out the way it's supposed to in the end!