Thanks for all the helpful replies and extra info! My navel discomfort has decreased a bit in the last couple of days. Maybe because of the reassurance that it is somewhat normal, or maybe it was because the babies were growing and stretching it a lot. I will keep my eye on it though and let my doc know if the discomfort is bad.
I keep having baby dreams! They're so cute! Last night I dreamt that I could see my baby's face push through my skin, like how you can see kicks, bulges and movements through the skin sometimes. In my dream I got so excited to see it and I pulled out my iphone and was taking all kinds of pictures and holding my belly/baby. I can't wait!