Babies heartbeat irregular at 32 week appointment

I had my 32 week appointment this morning & they found her heartbeat was skipping beats every couple beats...they sent for an NST...but the results were inconclusive & they didn't schedule me for any other testing or anything. They want me to get an NST every 2 weeks. Now I'm a FTM & I was freaking out! Should I request more testing & an ultrasound or trust my OB that it is nothing. Idk what to do mommas! Thought I'd ask here if anyone had the same situation happen to their little ones?