Docter, I Want To Delay Period By 1-2 Days For

Docter, i want to delay period by 1-2 days for family puja purpose Kindly advise whether i should take regestrone or anything else and in what dosage and how many days. Will it disrupt my cycle for the forthcoming months? kindly reply. I must mention that I have a regular 30 day cycle. I dont want to ruin that. Iam trying it first time and my age is 23 years.