My periods are about 28 apart, but this one came after 24 days. They usually last 3days but this time 6days and I'm still bleeding with cramps and time to time feel like I'm dilating. (I had 2boys but never had this problem) Bleeding stops then brown clots and discharge and then more bleeding. I have really bad nausea 24/7, cramps and throwing up time to time. Lost 3pounds in one day, I thought maybe I was pregnant but took a test and it came up negative. Could I possibly be having a miscarriage?