It's very challenging. But I'm sure you know what is best for you, your LO and the one on the way.
I kept nursing my LO bc I knew that's what she needed. I tried to wean and it just became a lot of tears and frustration so I quit.
She is 23 months old and I'm 33wks along. It's been rough with the sore nipples and I'm constantly tired but I have a great support group of my husband and midwife. Whenever a new problem arises like very bad leg cramps my midwife says something like" well you are feeding two like an amazing woman so let's make sure your getting your stuff". She ups my calcium magnesium supplement and thank God that worked!!
I know its rough. Make sure to put something on those nipples, ice them for soreness and take some time to relax!!!