Was it implantation bleeding?

So on the 6th to the 8th of this month I had what I thought was implantation bleeding. I was having pink/reddish brown/brown spotting every time I used the toilet. It had no flow to it and was only there when I wiped. I also had slight cramping that was no where near as painful as my normal period cramps are. I was also feeling very dry and tight down there on the first day. My period was due on the 12th but I still have not got it. I've taken two pregnancy tests so far but have come back negative. I guess I'm trying to look for a glimmer of hope as I'm starting to second guess myself and think it wasn't IB.

Does this sound like it was?

How long should I wait to test again?

Has anyone gotten a positive result longer than they expected they would?

Thanks xx