i have posted this in the ask an expert section but thought id ask here too:

I've never been able to breastfeed due to poor attachment, lack of supply etc and some call me crazy that im determind to make it work with twins when I couldnt with just one. But is there anything I can do now to make sure I have a good supply, make sure I know if they are attached properly before my nipples become cracked and bleeding.
Does nipple size/shape effect breastfeeding and if so is there anything i can do to help this, a shield maybe?
Any pointers will be great. I just want to be able to say I could do it, my babies were breastfed until they wanted to stop and Im very uninformed about breastfeeding so thought the earlier I learn hopefully the better our chances are of success