first how should I start to hand Express into a milk storage bag (dont wanna steralise a bottle yet if I can help it but even if i have to how do i do it into a bottle lol) secondly if I was to Express my milk into a storage bag and put it in freezer seeing as baby only 3 days old so it's the 'colostrum milk' still if I was to keep it frozen what benefit would it give to him say if i was to use it in a couple of weeks when i was looking to bring in bottle feeding as in a couple of weeks my proper milk will be in so will using colostrum milk affect anything after he has the normal milk and thirdly can you mix thawed breastmilk with fresh breastmilk (even if they 2 types of milk aka the colostrum and normal breastmilk) ... newby at this as I've always formula/pumped fed my other two