Its sounding really good hun. Ha ha yeah my finger was all the way up, quite hard to reach - just ensure ( which you will do as your a nurse) that your fingers are clean, you dont want any bacteria up there.
I tested 3 days before

was due. I used a clear blue, the internet cheapies are only now starting to get dark, I kept getting BFN's with them but the day I tested positive with the clear blue the line on the internet cheapies was extremely light - could barely see it.
I dont think you can go wrong with clear blue personally. Has always worked for me.
Why dont you do a first response tomorrow?
x