Baby hiccups?

I’m 32wks and my tummy pulsates a lot and my last appointment she was doing the Fetal heartbeat thing and it sounded normal but had a small different beat and my OB said it was hiccups, nothing to worry abt. But they’re quite frequent, but I still feel her move in general as well. Maybe I’m just paranoid, but I looked and read after 28wks feeling hiccups a lot means something is wrong with the umbilical cord. Do I sound crazy??🙃 I haven’t had an ultrasound since 20wks and I was wanting to ask for one my next appointment. My insurance covers everything bc my family reached the “out of pocket” payment limit bc my dads chemo. Do you think they’d be ok with doing one? I’m going Monday!