Very light slimy period

I was due to come on Sunday just gone 
On Saturday morning went to toilet an when I wiped I had fresh blood put a pad on but nothing was only when I wiped then it stopped for about 2days I've had rly slimy 
Very light blood red an brown only when I wipe yesterday an today been haveing an feeling sick sore boobs blotted 
I done a test on Sunday was negative I've had a strange feeling in my abdomen to any advice