Re: When to start taking supplements?
and almost always, supply issues are remedied simply by providing demand: nursing on demand all the time at first, etc. so my first line of preparation would NOT be the supplements, but in lining up help and support for that first month at home, now with a second kid to care for as well! make sure that your ONLY job, for as long as feasible, at least 2 weeks, preferably 4, is to feed the baby. someone else does diapers, laundry, cooking, shopping, cleaning, care of DD1, etc. good luck!
Nursing, pumping, cloth-diapering, babywearing, working professor mama with the awesomest SAHD ever.