No more ultrasounds?

Megan • Happily married. One 2015 angel baby, little girl born Sept 2016, & one due June 2019.
The last ultrasound we had was our anatomy scan at 20 weeks. I was told that since everything is perfect and all of my blood  and urine tests are coming back fine I won't have another ultrasound. I thought it was standard to get one in the third trimester to see how big the baby is and just check on everything. I see all you ladies posting pics of 3D and 4D ultrasounds and I'm jealous. I want to make sure my baby girl is still ok and growing in there and is, in fact, still a girl lol. I live in Pennsylvania, USA.