Negative blood test shouldn’t matter if only 5 DPO, right?

Kassie

I have endometriosis and ovarian cysts. We are ttc with my third child. I just so happened to be at my gyn on Monday for a follow up on my cysts. They decided to do a blood test for pregnancy despite me saying I was only 5 dpo. They just called to say it was negative. But does that mean I’m out? As far as I’ve always known five DPO would be way too early to know, but I’ve never had a blood test for pregnancy I’ve always found out with a traditional pregnancy test. Thoughts?