That dream is something, to give birth is quite a natural and normal prcocess. Giving birth in a dream tells of new beginnings in your life that are positive, or you will have a baby one day.  That empty feeling you talk about is really what it's like, I know, but I never wrapped my tummy, it would hurt too much... but it is an actual common practice and below is some info on it. I think you had a kind of pycic dream where you got to share an experience of what it was actually like giving birth, but lucky you, without the pain involved. That's what I get from how you described the details so clearly.

For centuries, Japanese mothers have used their ?Sarashi? to speed up weight loss and toning of the abdominal muscles and skin after childbirth, while Hispanic mommies believe their ?faja? helps bring all the muscles used in the birthing process back together again. No matter what she calls it, women in Indonesia, Thailand, Singapore, Latin America, Mexico, Spain, England, and the Philippines have benefited from using an abdominal compression wrap after childbirth. No wonder so many US celebrities have gotten on board!

From reasons spiritual to medicinal to plain-old-vanity, stomach binding has been around as long as the Buddha. In ancient Indian rituals, binding is practiced to warm and close the open stomach and birth canal. They also believe it speeds up the ridding of waste blood. It is still common for modern Indian women to wear these binders to promote good posture during breastfeeding, persuade the stomach muscles back together, reposition the womb, and eliminate stretch marks.