When to feed?

M

We are currently working to transition from a swaddle sack to arms out. My 10 week old had been sleeping 8 or 9 to 3 or 4 then back down til 7 or 8... she’s obviously had more wake ups the last ciuple of nights. All I’ve done is give her her binky and par her tummy and she goes right back down. Now I feel guilty like what if she needed to eat? My husband swears she wouldn’t go back down if she was hungry. Thoughts?