The white tablets you have taken are the so-called placebo tablets (which do not contain the active substance). This situation should be treated as skipping 3 pink tablets with the active substance.

According to the manufacturer's information, if you forget to take a pill on the 18th-24th day of use, you can proceed as follows:

Stop taking the remaining pink tablets containing the active substances from the blister and take the white placebo tablets in the last row for up to 4 days, including the days when the tablets are missed. Then continue taking the tablets from the next blister. Your contraceptive protection will remain maintained and you will not need to use an additional method of contraception, provided that you have taken the pills as prescribed for the 7 days before you missed your first pill.

If you took the third white tablet yesterday (Thursday), take the last white tablet today (Friday) at the agreed time and start using the new pack the next day. If you were supposed to take the fourth white pill yesterday (Thursday) and you did not do so, you should skip taking it and start using the new package today (Friday) at the agreed time.

Other tablets should be disposed of properly, e.g. by throwing them into specially marked containers that you can find in pharmacies.

Here you will find a list of pharmacies that have such containers: https://www.gdziepolek.pl/apteki/przeterminowane-leki

More information here: https://www.gdziepolek.pl/artykuly/jak-i-gdzie-wyrzucac-leki

If in doubt, consult a doctor. The Gdziepolek.pl portal allows you to take advantage of teleconsultations:

https://www.gdziepolek.pl/telekonsultacja/z-ginekologiem

Here you can check the availability of the medicine and make a reservation:

https://www.gdziepolek.pl/produkty/111326/drovelis-tabletki-powlekane/apteki

I encourage you to read:

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

https://www.gdziepolek.pl/artykuly/antykoncepcja-hormonalna