Nursing Strike? Breast Feeding Help

My almost 8 month old who is exclusively breast-fed (with some solids) won’t latch on and nurse. This started just about 24 hours ago, if I pump he will drink it from a bottle. Until today he has only had a bottle on Sundays or special occasions. This most recent time I tried to pump I was not able to get much and had to resort to my small freezer stash. At this time I’m stressed and super tired it has been a long couple weeks of him not sleeping well, I know that all of this can affect my supply and I’m trying to relax and get sleep when I can.

Could this be a nursing strike? Any tips and tricks?

Thanks