Nothing can really be done to stop it..i think most babies hiccup alot..i know my daughter did(now 4yrs)and our baby boy(11 weeks old tomorrow!)also seems to hiccup alot too
Im sure its just as uncomfortable for them as babies as it is in us as adults..but it doesnt last for long luckily!
Perhaps try and feed a little more,or give them a dummy to regulate breathing,settle them down for a sleep etc
Just as they had the hiccups in your tummy,they continue to do it now too
Austen James,11 weeks old tomorrow!