Pregnant?

Hello, I am currently about to be 6 days late on my period. I had sex multiple times during my ovulating days, my husband and I were on an agreement that if it happened, it happened. (We currently have a 5 month old.)

I have taken 3 pregnancy tests starting from the day of my expected period and each has came back negative.

With my son I knew straight away from sore boobs and tested 2 days before I missed my period and was positive.

This time I’ve had mild cramping, Nausea (no vomiting though) headaches, bloating back pain and a LOT of discharge.

(Note, I’m never late on my period.)

I go next Thursday for a blood test and a check up. Could I still be pregnant with the negatives? Or is my mind just playing with me?

I’m very new to Glow and there are many different topics, so I apologize if the Period Talk one wasn’t the right one to post this under!