Thanks for writing to us.
The mild spotting and the brownish discharge that you are having can be due to the implantation
bleeding due to pregnancy
. Since your periods are overdue it is best to test your urine for pregnancy using the kit available over the counter.
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
Dr. Rakhi Tayal