What do you see when getting an ultrasound at 6w3d?

Alicia

I’m going in for my first ultrasound on Tuesday and I’ll be 6w3d according to my lmp. They say I should see the fetal pole and a sac. Is this the norm? Is it normal if you don’t see those at 6w3d? Is it common to measure earlier than you think at your ultrasound?? This is my first child so I have questions lol