Ultrasound. .

Shayla • Married to the man of my dreams. We are expecting our first child after months of trying and miscarriages
How many people are you allowed to have in for your ultrasound. Have had two so far. Always been just me and my husband. But for my 20 week ultrasound. I would like the some of my family there for gender reveal. But was wondering in your experience are you only allowed to have 1 person with you?