feeding

so i tried to breastfeed but two nights ago i woke up with terrible back pain to the point my boyfriend had to take me to the emergency room. they said it could’ve just been a muscle spasm after they did 2 cat scans to make sure i didn’t have any blood clots from the epidural. so they had me pump and dump for a day because of the medicine they gave me. and now my milk supply is so low i just want to give up. between both breast i literally only got 10ml. i’ve been feeding my baby 2oz of formula and he seems pretty content with that and then falls asleep for about 2-3 hours but sometimes his stomach sounds like it’s grumbling. should i be giving him more than 2oz? he’ll be 2 weeks old on saturday.