Is the lack of withdrawal bleeding while using Adaring a cause for concern?

According to the information contained in the Summary of Product Characteristics, in a situation where the disc was used in the past cycle in a way that did not fully comply with the manufacturer's recommendations and there was no withdrawal bleeding, a pregnancy test should be performed before using the next disc to exclude potential pregnancy. The types of pregnancy tests can be read at the following link: https://www.gdziepolek.pl/artykuly/test-ciazowy-jaki-wybrac-i-kiedy-zrobic At the same time, it is worth knowing that sometimes during the correct use of hormonal contraception, withdrawal bleeding may also not occur and if it occurs sporadically, then this is not a cause for concern. More information on the correct use of contraception can be read in the article linked below: https://www.gdziepolek.pl/artykuly/jak-prawidlowo-stosowac-antykoncepcje