Ok my period came a couple of days early last month and was shorter then normal. this month I am due my af on the 24th and I started getting brown cm yesterday after cramping followed by a light flow of red blood and then it stopped, then today I had a bit of blood in my urine so I thought ok its af. Then nothing until a little bit of brown cm???? Im so early and its just not starting, but the has been a bit of blood and I always read implantation bleeding is brown or pink discharge??? What do you think?? one other thing, this time last week I had horrible food poisoning , could this affect anything??