MIL at the ultrasound

Erin

Is it normal for moms and/or mom in law to go to your first ultrasound with you. I was told yesterday my MIL wants to go with us. Am I wrong to think this should just be me and babydaddy? I love her like my own mom, but I feel like her being there would just be too much. I don't think I have the heart to tell her no. And if she goes I feel like I need to invite my mom to go, but it's just going to get too crowded!