my body has never done this before!

samarie

this month i got my period 2 days late and it only lasted a day and a half!. and during i had no clotting and it was extremely watered down and pink. so yay! right? i take a test and nothing. so my doc says wait 2 wks then take a test. i did again a few days ago and still negative! so i am supposed to start ovulating and am at my peak tomorrow but no CM. and my ovulation test are showing nothing. but now i have brown discharge. what do you ladies think? side note: my first pregnancy i showed up negative until i was 14 weeks!