Help!

Mika • 28 years young TTC our rainbow baby!! Can`t wait to receive the blessing from God.
So I'm about 8DPO and I've been having cramps in my left ovary and horrible back pain in my left side. I never have back pain! I have also notice that I have extra saliva 😁. My period is supposed to come on June 6th. We are TTC. I'm hoping these symptoms are all signs that I'm pregnant. Has anyone else had these symptoms??