I want 2 dresses from ASOS, which is this UK store. I've never ordered from there and don't know how their sizing is, or if its consistent. I noticed they have a size chart and it goes like this:
^size chart courtesy of 
www.asos.com
My measurements are:
Bust: 38 (measured across widest part)
Waist: 30 (measured across natural waistline)
Hips: 38 (measured across widest part)
Both of the dresses I'm looking at have v-necks and are cut kinda low in front and 
my issue is with my breasts cuz I wear a 32E/F and I always have problems with them fitting into clothes. I weigh 133 (5'1") as of this morning but I'm exercising 
HARD right now to lose 5 lbs and will probably be closer to 128/129 by the time I receive the two dresses.
Judging by the size chart above I'm thinking I should go with either a 12 or a 14 but I don't know which would be safer...? What do you guys think? I'm hoping some people who have ordered from them before can chime in as to their sizing....
TIA 
ETA: I normally can fit a US size 8 in Express dresses.