So I have been sexually active within the past 4 months. In October my period was on time and normal. however a week afterwards, I bled again for about 3-4 days. (It normally lasts about 7-8 days) then in november about a week before my period was due, I started seeing brown discharge. and it lasted the whole week with no other symptoms. Then I missed my period. Continued to have discharge plus light cramps, and feeling more tired. Took two tests so far and they're both negative. A week later(which is today) the discharge has stopped and I'm bleeding. lighter than my usual periods and the color is lighter also. I'm not showing any other pregnancy symptoms. Is it in my head? Was my period simply late and this is just normal?