I'M SO JEALOUS OF HOW PRETTY Y'ALL'S HAVE BEEN! That's it

I love the pics y'all have posted and seriously can't wait until I have mine on the 18th!
I do have question, though. Typically how long do Bridal Showers last? My sister wants to take me out to my bachelorette party after, and I was wondering time-frame, just to get an idea.