I leaked a lot with my eldest in pregnancy but it took 4-5 days for my milk to come in, second eldest I didn't leak but could squeeze out loads of colostrum but milk came in early-though I never experienced engorgement with him he never lost anything from his birthweight and was well over a pound over his birthweight by 10 days old. Second youngest I leaked even less and had no problems with supply if anything the oversupply I had caused us some problems. Youngest I leaked one tiny drop at about 37 weeks and couldn't squeeze any colostrum out either, even when he was born it was a struggle to squeeze any out it was only a good nappy output that told me he was getting enough. When my milk came in I was so engorged I was crying my eyes out and I got blocked ducts, then I had a serious oversupply and over active let down until he was 11 months old. Leaking in pregnancy is no indication of supply when your milk comes in at all. I haven't leaked at all in this pregnancy and I could only squeeze any colostrum out from 32 weeks and then not much. I was even BF my son throughout pregnancy but most of the time it has been 'dry' nursing xx