Elvie pump and relactation

[theadoory]

I'm 7 weeks postpartum with DS2.
He's formula fed but with some bfing for comfort. I'd love to increase my rapidly dwindling supply and change up the FF/BF ratio a bit.
I rented a medela symphony, but I just have no time to be sat down pumping.
I've bought the Elvie pump. Can I use this to increase my supply? I'm making so little now that it'd almost be a relactating task for it!

Any advice regarding any of the above?
I put baby to breast regularly, but I'm making so little that he becomes frustrated very quickly.

I'm not sure about relactation but I think in principle if you're still producing, you can increase your supply.

I'm no expert but i found the website Exclusive Pumping really helpful when I was trying to get to grips with increasing supply through pumping: exclusivepumping.com

Hopefully someone more knowledgeable will come along!