Should I worry?

We have had two MC this year one at 4wks and one at 6wks. We are now pregnant a third time and are 9 wks. I have spotted brown blood one or twice this time but the other day I had a cramp my lower abdominal region that almost brought me to my knees and my face got blood red. I had been bloated and wrote it off as a horrible gas pain. But the day after I had 3-4 spots of red blood then nothing for a few hours then a large dark brown spot early in the am and then light brown spotting until about noon today. I had some light cramping so light I barely noticed it. Now I have a ache in my lower back on one side similar to a kidney infection. Don't know if I should go to my OBGYN or my reg. physician or just wait it out to see if it gets better. I tend to freak out at everything right now. We want this baby so bad and I'm paranoid AF.