Is breastfeeding child that is almost 2 a problem during pregnancy? I remember reading (through Jewish sources) that breastmilk of pregnant woman can be harmful and not beneficial to the child.
Answer
B'Sha'ah Tovah!
There are no halachic issues with breastfeeding during pregnancy or with tandem nursing. If the pregnancy is going well and you are feeling well, feel free to continue to nurse for as long as you like.