Is there a possibility of pregnancy at all while taking Vibin Mini?

Hi, I started taking birth control pills from the first day of normal large bleeding and not spotting which occurs the day before the period on toilet paper. I have been taking vibin mini for 7days yesterday after taking 6 tablets (this was the day after the end of the period) we decided with my partner to have sex to the end. As it's my first pack so I have a lot of stress and don't want to have children yet. The tablets I had selected based on tests and the gynecologist said that they work from the first tablet I take regularly do not forget but this first time to the end and the fear of becoming pregnant does not give me peace of mind. Is there any such possibility at all?