I can almost get one at 7 weeks po but there not fully touching erachother so i wouldnt class it as a cleavage, ive been taking cleavage pics by pushing them together from 2 weeks po an the changes have been quite dramatic, the gap gets smaller each week but looking at the pics i think ill need atleast another month or 2, seems like everyones different, i had unders an i could move them abut at 2 weeks lol xx