My last period was June 20th so I was expecting my next period around July 20th. It is now the 24th and I am 4 days late. I had sex with my boyfriend on July 7th and 9th using only the pullout method. On July 12th I started spotting brown blood and that lasted 7 days, which is typically the same length as my period. I am NEVER early, usually late if not on time. My mind is telling me it's just an irregular early period. But it stayed brown throughout that week. Only one time when I used the bathroom, I wiped and it was red. It was also very light, hince the reason they call it "spotting". I always bleed heavily during my period. So it was the same amount of days, but MUCH different than my usual period. So the spotting ended on the 19th. On the 20th, the day my period was due, I had very bad cramps as though I had already started. So I would go to the bathroom to keep checking but there was never anything there. Since then I've been having frequent headaches (my main symptom), very mild cramps that come and go, and slight nausea (which I don't know if it's just in my head). I took a urine test the 20th and 23rd, both negative. What does this mean? What should I do?