Omg I have never noticed in my last two pregnancies if my boobs grew this fast but I doubt that they did😮 right now I have went up at least a full cup! They are overflowing my current bras and it's so obvious how big they are just by looking at them ! I pray they stay full this time around! After my second child they were so saggy and had no lift or volume in them left!! I don't want to get a boob job I'm praying they stay nice after this baby!