aquadurl aquadurls. and kate wanted one of these constructions kate would sit in front and william behind her. this is kind of instead of an epidur ral. yes. she grabs on to this and feels better? yes, and also helps from pinching the husbands. one pain drug is quite common here. i m here in the delivery room with april who is about to have a baby, and she is doing something that is almost unheard of in the united states. she s taking laughing gas for pain. it doesn t make you laugh even though it is called laughing gas. reporter: nothing is funny right now? no, nothing is funny. reporter: and now of course, we don t know how exactly kate will give birth, du our royal correspondent katy nickels says she will have a birthing ball and all of the accouterments to have a normal birth. and including the hanging curtain. and yes, anything to e help you there the labor.