Iam priyanka mother of 7 months baby, my menstrual came when my baby is 5 months old ,next month period came like 1drop in first day in 1/2hour, 7th month also same like that happened there is no 5 days period , I went to hospital they told hemoglobin is positive and tested pregnancy also it is negative and Ihad thyroid problem it is also normal but there is no regular periods why?