Milk vanished at 4 months?!

Ta

I have twins, so I breastfeed and pump so my husband can help feed the babies. One of my girls doesn’t like to tandem feed so it helps if he can feed one as well.

I pump 8 times a day I order to keep up supply for two tummies. I was doing great and pumped ~9-10 ounces every 3 hours. The past few week, however, my supply just dropped drastically - almost in half. I thought maybe it was hormonal, but it’s not coming back.

Ive tried power pumping, an extra pump a day, drinking more water, and now I’ve started using my freezer stash. My girls just turned 5 months today.

Tips? Help?!