You can still have sex - as long as it's still comfortable for you, and as long as you still want to, and as long as your doctor hasn't specifically told you that you can't.
But if you just aren't feeling like you want to, and it's causing you to have hip pain, then, personally, no, I don't think that you should be. NOT because you're 32 weeks pg, but because it sounds like it's not any fun for you right now, and it should be about fun for both of you - especially when you're already dealing with the day to day discomfort of being that far along in your pg.
Now, if you are still wanting to have sex except for the hip pain, then you can try different positions or different ways of gratifying each other so that it's more physically enjoyable for you.
at 12:25 PM on Sep. 28, 2009