Exclusivly pumping

Ive been suuuper stressed with home situation lately and My baby is 2 weeks old today and exclusivly on breastmilk that I pump. My milk came in before we even left the hospital. By the first week I was pumping 6-9oz. Every 2-4hours . a couple days ago i was put in a situation where i couldnt pump or even nurse for 12 hours. Since that day im only getting 2-4oz every 2-4 hours :( and thats hardly enough to keep baby fed. I don't know if that 12 hour hold signalled my body that i was done breast feeding or if being stressed out is affecting it. Ive been trying to pump more frequently for longer periods to bring my milk back, i eat oatmeal everyday and drink tons of water but it seems like nothing is helping. Any advice is appreciated!