Anyone know this ?

I am just wondering because I am a little confused on this. My friend is in the hospital she has been there since yesterday morning her water broke at 5:30am. They tried stopping the labor and stopped her from having her baby a little longer because she is not supposed to have her for 2 more months they want the baby to produce a little more with her lungs. They are not letting her have her until tomorrow morning. She has been two days with her water broken, I thought the baby could not servive without the fluid Sak? Any information on this !?