Any chance left? Help please!

Arianna • 😊 Paramedic 🚑 Married 💍 MC 3/1/18. Mommy to my rainbow baby Liam Cayden ❤️

I’m currently 7 days late for AF, I have never been this late other than when I was pregnant last year but unfortunately that ended with a miscarriage. I took a pregnancy test at 3 days late and 6 days late both were negative. Idk what is going on, do I test again, if so when? Or do I wait until I’m two weeks late for when my doctor will then do a blood test and go from there? The only symptom I’ve had is fatigue, which I had with my last pregnancy.

Anyone had a negative test after missed period and end up pregnant and just finding out later?