Multiples and OB appts


My wife has quints. We went to a fertility doctor and she had <a href="">IUI</a>. Our fertility doctor told us that he will continue to see us until she’s 12-15 weeks. My question is; when having multiples do you see your OB often? We go every week for an ultrasound with fertility doctor. I told my wife we should make an appt with an OB because I feel her pregnancy is completely different, she has 5 babies in the oven!! Am I over reacting?