Help!!

Emma
On Friday I thought I had implantation bleeding as it looked like it (see pic). However after a few hours it became more bloody like a period. I didn't have any period cramping prior to bleeding (as when I'm usually due on I have hefty cramping) and I still have no cramping to this day. 3 days has passed and now I'm not bleeding (normally periods last over a week) 
Since I have heartburn/acid reflux, tiredness and feeling sick and sensitive around certain smells.
I've took a strip test and its negative (however there were bad reviews about the strip tests). I have a clear blue test but should i take it today or tomorrow?? Or would I not be pregnant at all??