Could this be implantation?

So yesterday, at around 11am, I had some pale pink Cm/spotting. I had a bit of mild cramping also, and just assumed AF was coming 4 days early. Implantation is usually brown isnt it?

I expected to have more as the day went on, but its now 22.40 the following day and ive had nothing at all. No spotting, no blood. The occasional mild cramp. I assumed that if I’d had spotting yesterday that AF would have followed?

Is it possible it could be implantation? I’d have been 10/11dpo yesterday. We stopped tracking this month because we’re on the waiting list for IVF/ICSI, so we decided to take a more laid back approach but now I’m past myself!