Ya, could be hiccups or if it's more from movement then that's normal too. Mine will sometimes jerk around and stuff like she's mad...kinda like a "get me outta here" jerking/kicking!
It sounds like yur baby has the hiccups ! Id talk to your doctor about it tho just like the other girl above me reccomended
Im a first time mom too but my dr asked if i had any feelinga like that because babys are prone to hiccups from week 30 on. Talk to your dr about it that could be what it is.