That's not bad at all hun, you may find you need to add another 5-10mins on to the A time soon but I'd just keep an eye on the nap length and if it starts to shorten. You'd need it to be consistently though, not just once so see if she's ready for an increase. Same pattern over 3 days will signal she's ready.
It sucks when they throw things off don't they? Don't worry, these things happen. You'll never manage to get exactly the same routine every single day, I'd just go with the flow and try to keep as close to it as possible.