Af due yesterday

Definitely not fmu and I didn’t hold it that long after smu maybe 30 mins. But last night I started spotting so I was preparing for my cycle to start, when when I wiped again after about three hours it was gone. Light pink in color. Same thing happened this morning, went to bathroom, wiped and saw light pink, that was six hours ago and shen I went again and wiped it’s gone. Could it implantation bleeding. I took a test but it looks like all the others to me. Need a second pair of eyes please