Help!

Sara

I’m writing this in hopes that someone might have gone through the same thing. I am currently 10 days late. All pregnancy tests come back negative . Went to the doctors and had a blood test. The doctor called me and said that blood test came back positive with a 1.0 hcg which means I’m super early and may have ovulated late. He wants me to come back in three days to check my levels again. When I google hcg levels , it says anything below a 5 is a negative. So I’m confused as to why he said it was positive. He also said that my progesterone levels are normal for early pregnancy as well. Has anyone ever experienced this before and ended up being pregnant?