I was going to breastfeed to a year and a half. Can't they drink regular milk by then plus food? I genuinely want to know what I should substitute at that point. We have embryos frozen and I can't do ivf again while breastfeeding. Age and time are a factor or i would do it longer.

I was going to breastfeed to a year and a half. Can't they drink regular milk by then plus food?