Constipated 4 week old

Melonie • Wife & New mommy carrying two! Shifting into different paradigms has been quite magical for me lately!
Hi mamas,
I breastfeed exclusively & my 4 week old has been constipated today and she is going through the motions. Are there any remedies  anyone has tried that really works? We've tried the massages & given her a little water. Please helppp! 😩