Missed period

I am now 9 days late for my period, but still getting negative tests. (This is my first month TTC and first ever time I’ve missed a period so I’m very hopeful). I called the doctors yesterday to enquire about getting a blood test, but they advised I have to wait another month, and if by then, I still don’t get my period, I have to book in for a blood test which will take a further 10 days. I’ve never been in this situation before but is this normal procedure having to wait that long? I’m so impatient.. TIA xx