need advice!

Jessica
OK-- I just had my period about a week and a half ago. It wasn't as heavy as it usually is, but I'm pretty positive it was aunt flow. I had taken a pregnancy test the morning my period was due and it was a bfn
I just went to the bathroom and when I wiped, there was a light pink discharge all over the toilet paper! 
I have been sick since thanksgiving-- first stomach bug, then a cold, with nausea, and throwing up a lot. I haven't had much of an appetite. 
Could I be pregnant?! What the hell is happening! lol