SPOTTING 5weeks 4days...

I'm 5weeks 4days, all my tests confirmed pregnancy... I had a little spotting during implant about a little over a week ago. Which I know is normal. 
But today, (which has been a very stressful day due to problems w/ my health insurance & trying to see my ob/gyn for 1st checkup,) I started spotting again & it's dark brown, like when I used to spot before my period. Is this normal or something caused by stress? Anyone else go through this?