Amali, it might be worth talking to a lactation consultant at the hospital or the ABA helpline and explain what happened with your other children and what you might be able to do to improve your chances this time around. Your local ABA group or hospital will possibly hold a bfing info session for pg mums which you might like to attend and ask questions IRL.

It's very unusual to have your milk dry up quickly and I'm not 100% sure what you mean by going sour, which is not really possible while it's in your breasts, since it's made fresh by your body before your baby feeds. Your baby's birth, whether or not they were also being formula fed, how often they fed, and similar factors will have an effect on your supply. If you go through some of the reasons why that would have affected your milk supply you might be able to avoid them this time around.

And I'm going to go against the grain here - I wouldn't have bottles and formula on hand if you want to successfully bf. In an emergency, there are plenty of supermarkets and chemists around if it is absolutely necessary. The temptation of trying a bottle to see if that solves whatever newborn or bfing problem you've come up against can sometimes be strong (especially when it's the middle of the night!) and it might make things worse, rather than better (in terms of bfing).

You can bottle feed as well as breastfed, but it's probably not advisable for at least the first six weeks, if you want to avoid having supply issues.

GL hun! Looking into it and planning is probably the best thing you can do to successfully bf.