Pregnant and breastfeeding

An

I am newly pregnant and I’m still nursing my 15 month old son. He refuses to drink cows milk even if I warm it up and put vanilla drops in it. He barely drinks water. I planned to stop at 12 months but with how picky and particular he is I decided to keep going. Now that I am pregnant I don’t want to have to nurse 2 babies. I ideally want him to stop nursing within the next 2-3 months if possible. But I really don’t know what to give him instead. He won’t eat much dairy at all. I have to fight with him to eat basic foods. It’s so exhausting. Anyone have any tips for me or advice? I am so desperate to get my son off of breastmilk so I can at least know that I will only be having to nurse one baby.