How can I feel confident graduating while heavily pregnant and showing?

To put it simply, Im 24 and pregnant with my first child. Im not married yet but in a committed loving relationship. I’m graduating university in a few short months but by that time I will be almost full term with a huge belly. Nobody in my graduating class knows I’m pregnant except 1 close friend. I’m just feeling very self conscious having a big belly and walking across the stage, especially since I already look almost too young and naïve for my age. My gown drapes to the side so it won't even slightly cover my belly, unless I position myself to the side in pictures. I don’t want to feel self conscious about my body on one of the biggest days of my life - I will be the first person in my family to have a degree so it’s a huge occasion. My worry got to the point where I hoped to go into labour early. It might be a weird thing to worry about, so I’m seeking advice on how to deal with the inevitable.

How can I feel confident graduating while heavily pregnant and showing?
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