I had such trouble with mastitis last time around. I think my poorly fitting bras didn't help matters. Due again next month. I don't want to spend lots on bras until my supply settles a bit. I have two H&M nursing vests and some cheapie Amazon nursing bras. Would like to get some more so I don't have to worry about washing them so often. Any recommendations? Would I get away with just using the nursing vests in the early weeks?