Is it possible for a change of pills to affect the absence of menstruation?

Yes, changing birth control pills can affect your menstrual cycle and cause a delay or absence of menstruation. Levomine and Microgynon contain the same active ingredients in the same doses, so they are analogues. However, slightly different excipients can affect the body's reaction. If you do not have a period after the end of the cycle of taking birth control pills, it is worth taking a pregnancy test to rule out pregnancy. In case of a negative result, it is recommended to consult a doctor who can perform additional tests to determine the cause of amenorrhea and assess whether the change of birth control pills is related to this situation. I enclose materials that may be interesting and information about the possibility of using teleconsultation: https://www.gdziepolek.pl/telekonsultacja https://www.gdziepolek.pl/artykuly/czym-sa-zamienniki-lekow