advise

Hi ladies. I'm so lost and confused. I found out 11/03/2016 that I was pregnant. I didn't even think I was cause I was lightly spotting. I figured my period was just late. On the day I found out I was pregnant my lower back starting hurting. I couldn't even be excited or happy cause I already had two miscarriages. I ended up in urgent care Friday and was bleeding and had lots of back pain. Ultrasound showed nothing just a thick lining they said. HCG levels 988. Today my lower back started hurting really bad and darker blood   HCG WAS 1332. Not even double. I really think I'm suffering from another miscarriage and body go thru this. Insight would help me get thru this difficult time.