Android : Can I add a fragment to a FragmentActivity outside of whats in the viewpager?

I'm new to fragments. I have an activity that extneds FragmentActivity and uses the ViewPager to swipe between fragments.

Within one of the fragments I want to launch a new fragment that is "outside" of whats in the view pager. Is it possible to add a fragment like this or do I need to start a new activity with the fragment.

Now I have it launch a new activity but it is very slow.

Activity A



Fragment A

Fragment B

Fragment C

Activity B



Fragment D

Fragment A

So fragment A can launch acitvity B to get to fragment D but ideally it would be cool if I could just inject fragment D in Activity A

Hope that makes sense.