Looking on the internet deeply has found these results:

I haven't got holidays planned yet is the most popular phrase on the web.

i've got no holidays planned yet 12 results on the web	I haven't got holidays planned yet 163,600,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
No holidays abroad, no mansions, no cash. Too much chicks, ...that was no holidays. Well, you're a mean girl with an unkind heart who has no holiday cheer. Consumers are entitled to be informed in sufficient time on the quality of bathing water and water for recreational purposes at their planned holiday destination. There were no holidays on the island. There are holidays I had planned. There will be no holiday for this summer. I have no holiday left this year.	But I have driven a Bugatti Veyron and I have to say it was very civilised. Although I have voted in favour of the directive, I have great difficulty with it and I have been tempted to vote against. There are holidays I had planned. They only got holidays once a year. In the ten years that I have been an MEP I have never encountered such a personal, aggressive and abusive campaign as I have with this particular directive. I have been seeing a neurologist for the past few months... and I have Alzheimer's disease. I've got holidays in Sun Valley with the parents. Consumers are entitled to be informed in sufficient time on the quality of bathing water and water for recreational purposes at their planned holiday destination.

i've got no holidays planned yet

12 results on the web

I haven't got holidays planned yet

163,600,000 results on the web

More popular!

No holidays abroad, no mansions, no cash.
Too much chicks, ...that was no holidays.
Well, you're a mean girl with an unkind heart who has no holiday cheer.
Consumers are entitled to be informed in sufficient time on the quality of bathing water and water for recreational purposes at their planned holiday destination.
There were no holidays on the island.
There are holidays I had planned.
There will be no holiday for this summer.
I have no holiday left this year.

But I have driven a Bugatti Veyron and I have to say it was very civilised.
Although I have voted in favour of the directive, I have great difficulty with it and I have been tempted to vote against.
There are holidays I had planned.
They only got holidays once a year.
In the ten years that I have been an MEP I have never encountered such a personal, aggressive and abusive campaign as I have with this particular directive.
I have been seeing a neurologist for the past few months... and I have Alzheimer's disease.
I've got holidays in Sun Valley with the parents.
Consumers are entitled to be informed in sufficient time on the quality of bathing water and water for recreational purposes at their planned holiday destination.