35 days late and confused

Meranda

I am currently 35 days late. Yesterday I started having brown discharge/blood when I wipe. Before this I’ve been running to the bathroom thinking I started just to find lots of white discharge. I have tested for pregnancy since 1 week late and stopped around 20 days because I was tired of negatives. I have been cramping like crazy. Could this been implantation bleeding? When’s the best time to take a pregnancy test?