remedies, suggestions??? help! 😔

Camille • Expecting our rainbow baby!!! Verrrry excited!!! ☺️
My 6 week old is constipated..we've tried medicine recommended by the pharmacist yesterday n still nothing! I jst tried a little prune juice..Praying that works out! It is breaking my heart to see her strain n look so helpless! 😔 Anyone else been in this situation? What did you try?