Supply loss after a week away

Hey everyone,

I’ve been exclusively breastfeeding my son who is now 6 months old. However I had to leave him for a week recently and although I pumped all I could while I was away, I’ve experienced a significant supply loss by the time I come home. I am putting him to the breast when he is hungry, and topping him up on formula milk when my breasts are empty if he is still hungry which is every single time. I’ve noticed that my breasts are starting to feel slightly fuller but no where near the extent they were before I went away.

Does anyone have any tips on increasing supply under these circumstances and has anyone else successfully regained their supply fully after being apart from their baby?