Frequent fetal hiccups should i be worried?

im 35 weeks pregnant and my son gets the hiccups about 2-3 times a day they last anywhere from 5 to 10 mins . i just read online that this is dangerous and his umbilical cord could be wrapped around his neck. im soooo worried now. is this true anyone have experience with this and your baby came out safe? plz help this is my first baby i dont want to think the worst but im scared now!!