When do I need to take the pill again?

I am on the combined pill and I was told to take it for 21 days the 7day break. She sed to take it on the 8th day. If I took the 21st one last tuesday when do I need to take the next one. Today or tomoz?

You need to take the next one on Wednesday- if you took the last one on tuesday, you need to count 7 days of not taking it, so you stopped taking it on Wednesday, that's day one. count 7 days from then and take it on the 8th day, that means Wednesday.