6 days late

Veronica

I am now 6 days late and pregnancy test was negative this morning at 6am. I have slight cramping left side of my lower abdominal, which I have never experienced before. (Day 31 of cycle and usually AF visits the 25th day) I am getting hopeful but pregnancy test this morning tells me Im not pregnant. I have a doctors appointment setup, but just looking for some advice till then.

How long have you gone with a test saying negative, but resulted in a pregnancy?