Bfp?? After bleeding!!

I'm not due for AF until this coming Tuesday. This past Monday I started bleeding. 8 days early!! I continued bleeding thru Wednesday with an Af type flow. Even heavier at times. Yesterday brown discharge only. 
​Cycles are usually 26 days. This would be a 17 day cycle. I still have cramping, and now nausea, light headed, tired, and a pulling sensation in lower abs. So this morning I decided to buy two cheap dollar store hpts. 
​First one has a very faint pink line at about 5 minutes. I took the second one...same thing !!
​Anyone experience this or have an opinion that will be helpful? I'm so confused !!