Very confused! O day??

Okay so the opks gave me a positive on the 7th and 8th.. but I got a temp spike for bbt on the 5th and its been pretty level ever since.. I had ewcm a tiny bit on the 5th then again on the 7th.. I'm just trying to figure out how many dpo I am because I've been spotting brown for the last 2 days.. enough for it to get on my underwear.. but not enough to be compared to a very light period.. plus its brown.. anyone?