Has anyone found that either of these medications have interfered with their periods?! I've been taking hydroxychloroquine since June & prednisolone since September and ever since my periods have been really irregular. I'm on Cerelle birth control also and take it constantly so should not even get periods however I've had really heavy bleeding for the past 3 weeks. I'm 20, have SLE and am also very aneamic. Any advice/experiences are welcome!