I'm 13 days late and no sign of AF. No tests are BFN.

I had cramps during implantation week, but no implantation bleed. I've been feeling tired on and off, which is not Normal for me.

I was having clear discharge few days ago and now I have pale yellow discharge. It doesn't smell, no itchiness. I don't think it's yeast.

Is this sign of AF coming or possibly pregnancy? I have blood test tomorrow 🤞🤞