Blood test hcg

Hey ladies so im feeling fairly sure iam pregnant i have the same feeling symptoms etc when i was pregnant with my daughter

I still have 5 days until my next exspected period and started symptoms roughly 4 or 5 days ago.

I read online that even a drs bloodtest needs to be done a week minimum after ovulation

So now im worried if i go today to get a test done that it will give a false negative

Anyone had same experience and it still said they were pregnant?