Bright red blood 10DPO then nothing...?

I had a very little bit of brown blood on 10dpo then bright red blood only twice when I wiped. I put tampons in thinking it was af starting early and there was nothing on them for 2 days... I'm supposed to start my period tomorrow according the the app but I'm not even spotting or anything. Could that have been implantation bleeding?? Could implantation bleeding be bright red and only when you wipe? I'm scared to take a test today and have it be negative... I also missed first morning urine so I'll have to wait for tomorrow morning.