Give her a call and let her know that you understand she has family in town and that you don't want to keep her on the phone and away from them, but that you just wanted to let her know you were thinking about her and very much looking forward to seeing here tonight. Nothing wrong with that, I know I would love a phone call like that if I was dating!
its not bad to let someone know you are thinking about them and "how your looking forward to the date"
Give her a call and put your mind at rest, it's the only way. :-)
Hope your date goes well.
sure - she just might like the idea you called
Give her a call. She will appreciate it
You want to call her? Just call her!
If that for some weired reason makes her drop you, she wasn't worth the trouble anyway. You should be able to be the way you are. If that's not okay with her, then move on.