I am due on my period in about a weeks time. I started bleeding yesterday, and thought it was a bit odd as it was early, stuck my mooncup in and thought nothing on it. Changed my mooncup in the evening, and there was (sorry, TMI) a small quantity of dark, gloopy blood.
Came to take my mooncup out this morning and there was no blood, so obviously not a proper period, and I'm certainly not bleeding now.
I've been pregnant twice before, and never noticed any implantation bleeding in those pregnancies.
Last time I had sex was 4th April, and it was protected (condom).