Period coming or pregnant?

Hi ladies, so I would.really like some advice on what's been happening lately...instead if going into it and boring you all..here's the highlights...

LMP 16th October

UNPROTECTED SEX 24th October (cd9)

OVULATION sometime between 27th-1st Nov

Then on the 5th Nov during sex my partner said there's was blood, and sure enough there was a light pink discharge when I went to the toilet.

Then nothing. My period is due on the 13th November. I took one hpt, it was negative, but maybe too early, or is af on her way? I guess I just need to wait and see. But I have never bled mid cycle before.

I'd love to hear what you think.