Implantation bleeding?

So 4 weeks ago I had a miscarriage at 6 weeks. I've been through this before and the hgc was out my blood the same day I went for a scan.

2 weeks later I ovulated and we had one oopsie during the fertile week.

From the 1st May-4th of May I've had spotting like this:

It doesnt even show up on a pad and the heaviest it's got was this:

Then it went back to like the first photo. It stopped midday 4th of May. My periods due today/tomorrow and I've had no bleeding.

Help please