Same case with my daughter before 😕 It's heartbreaking to hear her cry for it, but I have to since my tummy contracts everytime I feed her.... so I tried my sister's suggestion to put a little amount of toothpaste on my breast, so she can smell & taste a bit and it worked! Took few bf sessions until she no longer ask for it. Found this article on our wesite, I hope it helps as well 😉 https://ph.theasianparent.com/how-to-stop-breastfeeding-a-2-year-old
My problem also now but I delay her weaning because of the covid. I got a little contraction but it didn't stop me to bf my 1 year 10months daughter, I am 20weeks pregnant. Actually i am planning to stop bf her on her birthday, exactly 2 years old. But in case she doesn't like or getting hard to wean then i will try tandem feeding😊