I just wanted to tell you how awesome it is that you were open to life with the fourth child. We have the same family make up with three children, then a large gap before the fourth child. Our blessings have increased a hundred fold. This child has brought so much joy not only to our family but to our entire church community. I am sure that you will find the same. I contracted Bells palsy in my last month so I know how difficult it can be. As you know from your other beautiful children it is all worth it in the end! My only scheduled delivery of the four was my second and it was the most painful. Please go with your doctor's advise b/c he/she knows what is best for you medically. We were happy to let God decide on everything with our last child including the due date but God works through situations and people as well. So your time will come exactly as it was meant to happen...scheduled or not.
May God Bless you and your family always and may you put all your trust in Him who cares for you!