First thing that hit me was an overwhelming feeling of peace about 2 days in. 2-3 weeks in, major softening of the skin, which continues well past that, then the breast buds filling out or growing if you didn't start out with any, and then what my gf calls the sundae effect, lol!! That's when she noticed the shape starting to slowly change, or 'melt' into what it's going to become, and that for me was about 4 months in+. She noticed it before I did, so there are things you won't notice because you see yourself every day and your mind plays tricks on you to an extent, but other people who don't see you every day will notice before you do
Good luck, and welcome to the club, girl

XO
Kelsie