I know fetal hiccups are normal but my baby gets them 6-10 per day and they last about 10-20 mins. I feel like this is a lot! I read that this could be a sign of cord entanglement and compression. I tried to contact my doctor but they keep telling me not to worry. I just want to have an ultrasound to make sure he's ok and my ob won't listen. What should I do? Does this sound concerning? I'm 27 wks.