What would you do in this situation?

I went to a nail place, and I’m 8 months pregnant and 17 years old. The guy kept hitting my hand with the nail file every time he wanted me to move my hand. I dropped my phone and he said “see this is why you got pregnant, because you can’t sit still” another thing he did was ask who’s paying for my nails and asked why isn’t the baby’s dad paying for them and asked if I’m still with him. I was going to just say to stop but didn’t want to make a big deal out of it.