Baby wants to eat or be soothed?

Dawn

My baby will be 3 months old tomorrow and she’s slept through the night for 4 nights in a row but last night was really rough I didn’t get up to feed her and wondering if I should I got up and rocked her a few times and it worked but only for a little bit how do I know if she just wants to be cuddled or if she’s hungry? First time mom here any advice will help! Just because she’s slept through the night doesn’t mean she will every night right??