Hi Demi, I am fairly new here so do not have the depth of knowledge the others have. Having said that, I was on BO for 3 months without noticing any change at all. I suspect it was more to do with body temperature than just a lack of reaction within my body. I didn't re-order due to the high cost of product coupled with shipping and import tax from USA.
Anyway I'm now just 3 months on PM and can say that this is definitely working for me. Nipples sore nearly all the time and hard lumps behind them suggests it's all happening

The measurements and pics do confirm this and I have to temper my impatience as this is a long term process.
With regard to Areola's, some grow really huge ones and some GG's prorate have quite small ones. I am given to understand that it's more down to the female genetics like your Mum for instance, this too applies to breast sizing!
Good luck with your program, I am sure more experienced members will post with much more info.
Hugs
Heather