Did your bra size change a lot while you were pregnant? Did it then change a lot when your milk came in and you were nursing?

Mine has changed a lot with pregnancy-- up more than a cup size and 2 band sizes, even though I'm carrying low and am mostly belly. I'm wondering if that would mean I'm in for bigger changes than someone whose size stayed more the same throughout their pregnancy, or if I already made the changes that are going to happen...

I'm not planning on buying nursing bras and stuff until after, but I'd like to have at least a solid nursing tank and maybe one stretchy nursing bra to start off with when the baby is born.