A Peek Inside: 3D/4D Ultrasound at 15 / 16 Weeks in Southern NH Pregnancy is full of “firsts” — first heartbeat, first fluttering kicks, first trimester checkups. For many parents, one of the most magical moments is seeing baby in 3D or 4D ultrasound. If you’re around 15 weeks along and considering a 3D/4D scan (especially…