If they don't do it during the appointment they'll set a time to do one and the ultrasound will confirm gestestional age (how far along you are) don't be surprised if it's not exactly the same as what the due date calculator says, the ultrasound is the more exact in this stage of pregnancy, the calculator is just an estimate
Yes :-) you will get an ultrasound to determine gestational age of the baby, Or in other words how far along you are and to determine if there are multiple babies