Hy. I'm 19 years old girl. My menstrual cycle was normal till now. But I'm not getting it now. I had my last on 28 dec 2015. It should be on time but I still did not got it. Should I go see a doc. And yes my diet is not very good due to my busy schedule and I smoke. I can hve my dinner only. Breakfast and lunch are usually skipped. please help.

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