Does every pregnant women have to take the glucose test?

Vy
Im 26 weeks 3 days pregnant with first child. My ob has not even mentioned the test to me and I thought every pregnant lady had to do this?? Am I wrong? I have an appointment tomorrow so should I ask her about it then? Also when I go in, they never measure my belly. All they do is weight, urine test, blood pressure. Is that normal?