I should think they will advise you wait at least a year honey,your breast will be changing all the time during this period,in this period you could actually start to love them,but that just my opinion,its not fact.
People do opt to go bigger on the second BA,you would have to speak to the surgeon honey,but I would imagine also that if you wanted to go bigger,that would depend on how your skin has stretched with the current implants,this is just my opinion,so the best person to ask would be the surgeon honey,xxx