I am 99.9% sure I am just having a slow start to my period but this isn't usually what happens and as I am a day late there is a tiny bit of my brain wondering whether this is actually implantation bleeding.
How different does implantation bleeding look to any light flow you might get at the very beginning of your period? Is the day of your period too late for implantation period - or a day late even?
I've had two children and never had it so no experience of it.