Hello doctor i take contraceptive pill i pil on 21th february and got my periods on 28th februarybut now its almost 30th march and not getting my periods ..what should i do now? plz help me?

Based on your question, it is unclear what your pattern pills is. Birth control (BC) pills have different patterns - 21 days then a 7 day break, 28 days then next pack immediately and others are taken continuously. It is not unusual to have little or no periods when taking BC pills: however it can happen that you do get pregnant on BC pills. Take a pregnancy test. If negative, continue BC pills.