Thanks for writing to us.
Since your periods are overdue, the mild brownish discharge that you are having could be related to an implantation
bleeding. You need to test your urine for pregnancy
by using a highly sensitive test kit available over the counter at the pharmacies.
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