Constipation pregnancy question! Prunes?

I bought a bag of prunes the individually wrapped ones.. Im unsure on how many to eat? I couldnt handle the juice, I threw it up instantly. 😭 Ive been constipated for 4 days now and I do have IBS so this isnt a new thing for me, I normly just take lax and go on but I refused to take anything while pregnant because im so paranoid. So, Natural ways are the only way now.. how many should I eat? Has anything else worked that I should try?

Apple juice doesnt work for me! 😫