i didn't want to use one cuz i was already using a bolster (long pillow) but my hubby bought it for me saying many pregnant women had only positive reviews about it. so i started using it and i totally love it. it is definitely more comfortable than my bolster and i don't have to flip it when i switch sides, which i find i do that a lot after i am into my 2nd trimester. still, i think it's good to have one, if u can find one of an affordable price, but not a must during pregnancy. :)