Anatomy Scan Tomorrow

I'm fairly against unnecessary things during pregnancy, especially possibly unsafe ones like ultrasound or as hubby calls it ultranoise, but have my anatomy scan tomorrow. I'm choosing to do it as we are planning an unassisted homebirth and want to rule out any immediate concerns that would be better handled birthing in a hospital. Even with what I know, I still can't help but get excited to finally see this little one :) we won't find out gender and will be surprised in 4 more months!