Yep, it's pretty common to feel gassy and feel bloated during pregnancy because of the higher levels of progesterone, a hormone that relaxes smooth muscle tissue throughout your body including your gastrointestinal tract. This relaxation slows down your digestion, which can lead to gas, bloating, burping, and flatulence and generally create miserable sensations in your gut, especially after a big meal.
Here's more information about being gassy and bloated.
http://www.babycenter.com/0_gas-and-bloating-during-pregnancy_247.bc
It was funny to see my colleague kept burping especially when she was with a client. She had to keep excusing herself during the meeting
Annabel Desmond