Help pleaseeee!

Amber • Trying for baby number 1

So AF was due sept 26th (that's based totally off glow I didn't record bbt or use any OPKs to know when I ovulated) so today I'm showing no signs of AF except acne? If that's even a sign. I went to the bathroom and (tmi) when I wiped I

There was a pink tint. It didn't quite look like blood it was really light in color and only when I wiped (not enough to fill a pad) i took a hpt on the 26th and again this morning, both negative. So my questions is, what could this be? Could it be start of AF? Could I have ovulated late and this be implantation bleeding? What should I do? Has this happened to anyone before? Any advice/opinion is appreciated ??