Thanks for writing to us.
Since your periods are overdue, the light brownish spotting that you are having could be due to an implantation
bleeding early miscarriage
, an impending period, etc. Do get your serum beta HCG
levels evaluated to find out.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal