Hello, this is Dr K.. Answers are not medical advice and do not constitute a doctor/patient relationship. I look forward to helping you today.
Its normal to not have a period for six to eight weeks. After a natural miscarriage, your body will still have levels of hcg in the bloodstream for several weeks.
Depending on how long these levels stay in your blood, it may take as long as six to ten weeks to have a period. Six to eight is more normal.
If you have had unprotected sex, you could be pregnant again.
In very rare cases, the placental tissue grows abnormally and continues to make hcg hormone even after the miscarriage is over. This is called a molar pregnancy.
Your pregnancy test should be negative at this point. It would be wise to do a home test. If its negative, you are safe to wait for your period. If its positive, you should make an appointment as soon as possible
It is very likely that the brown discharge you see may be the start of your period.