Sleepy baby

My LO is 6 weeks old and all of the sudden today she doesn’t want to eat as often and just wants to sleep a lot. She fusses until I rock her then she falls asleep. I use the wonder weeks app and it says she should be going through another leap in a few days. ( she was born a week late so it’s basing it off of her being 7 weeks old.) Does this sound like a growth spurt or symptoms of a leap?