As far as what it should be, I think that may vary by country and even by doctor/hospital.
I failed my one hour with a level of 185, it was supposed to be under 140 to pass.
At the 3 hour I was 78 fasting (normal 70-99)
176 at one hour (normal under 180)
142 at 2 hours (normal under 155)
107 at 3 hours (normal under 140)
So I was close to failing because of that first hour test, but passed. Many women fail the one hour, to the point where lots of doctors/hospitals don't do the 1 hour anymore. Don't worry yet. I had a higher first test than you and still passed the 3 hour.