My DD1 was 15 months when I fell pregnant with DD2 so still having a lot of feeds. She never changed throughout pregnancy although I think my milk decreased. I got her down to 1-2 feeds a day before DD2 was born because I didn't want to be feeding her that much with a newborn. There were days where she was less interested and I don't know if it's just because she was a toddler and too busy or because I didn't have much milk. But I made sure I got at least 1 feed in on those days because I thought she was too young to wean and wanted to keep feeding her. It was never hard though, she's always been a booby girl, lol. I think I got colostrum around 30 weeks or something. DD didn't care, just kept on feeding. She then kept on tandem feeding with DD2 for 18 months and weaned at 3.5yrs. Was a great experience for us