Well, it's currently a hotly debated issue and I have no idea anymore. I went into preterm labor and lost one of my daughters on April 13. The surviving twin is still going strong, but there are going to be some fairly severe complications. We're trying to keep her going to the point where I can have the steroid shots to strengthen her lungs (3 more weeks). Everyone has pretty much agreed that there's no chance in hell I'm making it to my due date.
Short answer, probably June or July, hopefully later rather than sooner