My period was 4 days late, and I had no discharge down there, nothing. and then tonight I had this little cramp that didn't even last a whole 2 minutes. Then I went to the bathroom and went to wipe and there was blood and I automatically assumed it's my period until I got to looking at it. It doesn't look like any of my other periods in the beginning, instead it was more brown and little clots of blood mixed with white-ish looking discharge. I'm not on birth control or anything. The last time I did have sex was Nov. 28 and we did not use a condom, he pulled out, but made sure to wipe off any pre-cum in the process. My fertile window for that month was Nov. 20-26.