7 weeks pumping only 1/2oz-1oz?

Dee • First pregnancy was an ectopic. Second I miscarried at 12 weeks. 3rd I miscarried at 5 weeks. Hoping 4th works!!!
I have been pumping since week one after she eats. I pump for 10-15 min after. I'm
Still only getting 1/2oz to 1oz total each time. I tried fenugreek and blessed thistle and Mothers Milk tea. I'm at a loss. Anyone else have this issue? When I return to work I'll have so little stored and have to use formula for the sitter.