How soon during pregnancy do you start to lactate? August 5, 2012 adminPregnancy Last night I noticed milk while gently squeezing my breasts. So I took a pt today and found out that I’m expecting my second child. Can anyone help me in finding out how soon during pregnancy does lactation start? Thanks! You may also likeHow soon during pregnancy do you start getting yeast infections?How soon do you start getting pregnancy signs?Q&A: Is there any Hindu Mantra for having kids soon or getting pregnant soon?What were your pregnancy symptoms and how soon did they start?How soon into pregnancy does someone start getting morning sickness?How soon do pregnancy symptoms start to go away once blighted ovum is diagnosed?