Renal Ultrasound...

So, I have to go to Greenville today for a renal ultrasound. From what I've read, it's no different from lots of other u/s I've had this past year... it's just the reason I'm having it done that scares me. When we saw our baby for the first time, the dr saw something above my right uterus where the baby is. He didn't know what it was and if it would get in the way of the baby growing, so I'm having it looked at today. I haven't been able to eat or drink anything since midnight last night. But since I go to bed at 7:30, I haven't eaten since 7. Luckily, my hubby is going with me today so maybe that will calm my nerves. I really hope it's nothing and our baby is fine.
I won't feel 100% okay until my baby is in my arms!!!!!