Hi Amy and Welcome to the forum, you might want to have a look at the following FAQ which explains where everything is
Welcome to Benefits and Work I'm afraid there are huge variations - anything from a few weeks to a few months is usual. In extreme cases people are waiting beyond a year
You might wish to bookmark/favourite this on your web browser now so that you can find it easily in future. Then you can come back to ask further questions rather than having to start a new topic each time. It helps us enormously if everything relating to the same claim is kept in one place - and I hope you will find it useful too