Hello my dear friends please help me, If the last three periods were as follow 1st day:3rd NOV , last day: 7th NOV 1st day:28th NOV, last day:4th Dec 1st day: 25th Dec, last day:29th Dec When it is supposed to come this month? I have a period calculator application says that it supposed to come yesterday, is that true? till this moment It doesn't come. Am I Pregnant? yesterday I made the test , it was negative and it frustrated me.