First ultrasound Today!

Emma
Morning Ladies,
I have my first US today!.. Wednesday morning I woke to find a small amount of dark discharge, to say I was scared would be an understatement, it has now become a little less but is continuing! This is my first and I'm really not sure what to expect? Have many of you experienced this?
Anyway I'm off for my first ultrasound to make sure everything is okay, but I am so nervous!! Wish me luck please 😥