Breast feeding

I gave into formula and bottle after hospital.. (she wasn’t going bathroom much so I got scared I wasn’t producing much) so my baby’s used to it.. if I try to latch her again can I start producing more milk?? So far I pump 1-1.5 oz but she’s drinking about 2 oz right now.. she’s a week old now. I’ve been having trouble latching her on but willing to try hard if I can get my milk supply up.. I just don’t want her to get sick since she’s used to the bottle and drinking a little more than I can produce..