Don’t ignore me please

Explain pleeeaase

I got my last period on July 30 and I finished on 3rd of August, I’m sure that I’ve ovulated on 6th of August until 12 August, I had unprotected sex on 11 august but he didn’t came inside me.

I supposed to get my period on 23rd of August but I didn’t get it yet, now I’m on cycle day 38 and 14 days late, this isn’t normal.

I did 2 pregnancy tests and 1 blood test both were negative and I’m starting to ovulate again.

What do you think is going on?