It may happen that withdrawal bleeding does not occur while using hormonal contraception. This information can be found in the Vibin mini product documentation: "Some women do not experience withdrawal bleeding during the placebo pill period. If the combined oral contraceptive is taken as prescribed, the likelihood that a woman has become pregnant is low. However, if a woman has not used the combined oral contraceptive as prescribed and has not had a withdrawal bleeding during the period of taking the placebo pills, or if there have not been two consecutive withdrawal bleedings, pregnancy should be excluded before continuing to use the combined oral contraceptive."

If you have been using the pills according to the schedule so far and there are no circumstances that could reduce the effectiveness of contraception, there is no reason to worry.

Here you can book the Vibin mini at the pharmacy of your choice:

https://www.gdziepolek.pl/produkty/82281/vibin-mini-tabletki-powlekane/apteki

I encourage you to read the helpful materials:

https://www.gdziepolek.pl/artykuly/jakie-leki-oslabiaja-skutecznosc-antykoncepcji

https://www.gdziepolek.pl/artykuly/jak-prawidlowo-stosowac-antykoncepcje