39 Weeks Pregnant Drinking And Burping

I have a big belly at 39 weeks pregnant. I pull up my shirt to show it off while I drink a protein shake and sparkling water. Soon after I start drinking the bubbly water, I burp a couple times, then continue drinking. I rub my belly as I digest and wait for the pressure to build. finishing my drinks. I start feeling some pressure and resistance when I swallow, and start releasing it with lots of burps! I wiggle and lean, jiggle and rub my belly and lay down to move the gas around and let it out.