Did I pause for 8 days instead of 7 days between the cartons?

Hi Dr, I would like to ask a question about contraception. I always take my medicine right but last month I started my pack a day before normal, but nothing happened my menses only came one day but it came normal. But this month I decided to take my medicine again the day I always take it in case I start my carton on Tuesday I make the break for 7 days and I return on the 8th day, but that month I took an 8 day break and went back to 9 I just wanted to know if I'm at risk of becoming pregnant? Thank you for your attention and I look forward to your response!
Expert answer:

In theory there is a small risk, yes, but it is small. A longer than recommended break (8 days instead of 7 days) may lead to a failure in their contraceptive efficacy.

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