Pregnant abd planning to breastfeed

I am pregnant with my second child. I really want to breastfeed this time around. I have pcos ( which I heard causes milk supply to be low) and I also have inverted nipples. my first try with breastfeeding was not so great. No colostrum, nothing. I would pump and pump,and also let him latch on. Nothing ever came. After 2 weeks I gave up. My question is, is there anything I can do to help with production or can I prepare my self in any way before baby comes? Any advice will be awesome. Thanks in advance