Dr recommendation....need advice

Michele
My husband and I found out Monday we are expecting a boy, which we are thrilled about!! The Dr told me that I'm perfectly healthy and I don't need any further tests or ultrasounds other then what's needed for the pregnancy (that was high risk Dr recommendation). Well I had my regular prenatal appointment 3 days later and my ob Dr then proceeded to tell me I will need a ultrasound every 4 weeks to measure the babies size and make sure he's growing properly and then of course the non stress tests once a week after 30wks. This is all because my bmi was slightly high, I'm not fat but obviously I've never been a twig. So far this pregnancy I've gained 7lbs and I'm 5 months along. I've had zero health problems and my doctors are really impressed with the weight gain thus far. So my question is has any else had to go thru all this with a previous pregnancy or even current??