Hai, I am a 31-year-old, height 5 feet 6 inches, weight 73kg. My first menstruation period starts at my 16 years of age. From my first menstruation to till before getting married on 05/2011 I get regular periods but the period lasts only for two to three days and also a scanty period only. After marriage I was sexually active and for the last two months I didn’t get my periods and also I felt like morning sickness, heavy craving, and tiredness. So I go through a urine pregnancy test last week, but it results negative. My question is, what is the reason for this to happen? Does scanty period causes miscarriage or infertility? Please clear my doubt.