If you are worried that you don’t have enough volume to get the desired size you want, you should consider getting an implant or having fat grafting performed.
If you want to have breast augmentation with fat grafting you cannot have a lift at the same time; if you want a lift and more volume, you should consider:
1) stage a breast lift and then have fat transfer after 6 months.
2) simultaneous surgery with a breast lift and implants.