I’ve used it for holidays a few times never had any issues. Usually back to a normal cycle the month after
I've done this every year for the past 5 years. I was prescribed levest worked great for me. 30 days on the tablet 1 week break (then start your next box you get a 3 month supply but if you are only after it a short time sure they can just do one box). It worked great for me no complications while taking it and periods back to normal straight away. We got pregnant within 6 months of coming off the pill xx
Are you already on the pill and take a week break to have a withdrawal bleed? If so - yes you can take the pills back to back and it won’t affect anything but it isn’t recommended long term (3 months+)