I am on birth control had normal period 2 week later I went to go to bathroom and fown a good amount of blood in my underwear now I have been bleeding lightly brown blood for tha last 6 days and been cramping and having headaches what could this be ?

I have the same problem. I skipped a pill last Tuesday and had unprotected sex the next day. Just today I started discharging brown blood. First thing I thought was "oh no, i'm freakin pregnant." But I've been reading around on other people's posts and maybe its just stress or spotting because of the pill. Have you skipped a pill lately?