If your primary interest is to just see the baby and you are between 8 to 13 weeks, we suggest our 2D "Just Can't Wait" Package. We check for heartbeat and how many babies.
We do gender determination between 14 and 20 weeks.
If you're interested in a 3D Package, we suggest you come in after 23 weeks. As far as the "best" time, that really depends on what you want to see and how many times you plan to come in. Here are some guidelines: