Why im i burping so much after sex i had sex yesterday but im still burping, im also on the depo-provera shot?

Aerophagia: Swallowing air is a common cause of excess belching, and the more you force yourself to belch, the more air you swallow. I'm not sure what role sex plays in your belching problem,however. Drinking hot water is one way to break down stomach gas allowing you to pass it rather than burp. If you think that you have a digestive problem, a gastroenterologist could evaluate and advise you.

Oral?: If you had oral sex, you could simply be suffering from symptoms of excessive aerophagia, which is a jargon way of saying you were giving oral sex and swallowed a lot of air.