Hi Doctor, I Had My Dates On 18 Th Nov

Hi doctor, I had my dates on 18 th Nov n my wedding is on 22nd Nov wanted to prepone so I started taking deviry 10mg from 10th to 12th 3 tablet per day n stopped as I was told that this is prepone tablet then I consulted doctor n she confirmed this is postpone tablet n adviced me to start taking the same tablet till 23rd as I didn't get my dates. My question here is - is it safe to use these tablet for complete week 3 tablet per day. Please advice else is there any other alternative for this as I am really worried if this effects later for having baby. Please help n suggest.