Implantation of beginning of period

I’m 7.5 months PP and Breastfeeding. I’m on the mini pill.. haven’t had a period since September 2023 (when I got pregnant)

I ovulated on Sunday Jan 26th I know because I tested and it was SUPER dark.

Hubby and I BD Monday & Tuesday.

I started “spotting” yesterday wiped once and no more pink and then this morning I wiped and saw this again.

What are the chances it’s implantation bleeding rather than my period returning 😅

We’re not trying for another baby.

If it happened we wouldn’t be upset about it.