Qlaira Pills

I started taking Qlaira pills yesterday for severe menstrual periods, as prescribed by my OB-GYN. However, my pain has intensified, and my menstruation seems slower than usual. Is this a normal side effect? I'm planning to stop taking it and schedule a follow-up check-up after my period ends. Are there any Qlaira users here? What side effects have you experienced? Specifically, have you had severe cramps from abdominal pain to lower back pain that made it difficult to move due to exacerbating pain? Thanks for sharing your experiences.