If you’re planning on nursing, I agree with yiddishemishpacha that you shouldn’t worry if things don’t go totally smoothly at first, and don’t give up too soon! A lactation specialist can really help if there are issues, and if you are going back to work as it seems from your questions regarding childcare, a good pump is definitely a very worthwhile investment. Also, as someone who nursed all my kids for over a year, I think it’s important to realize that nursing isn’t an “all or nothing” situation. If logistics force you to use formula occasionally that doesn’t mean you should give up on the nursing. For some nursing issues a speech-feeding therapist can also be very helpful.
