Hi Stepaheda: I think Angi can answer this question much better than I. I know the expanders are there to stretch your skin, and it's a many-months process; but that doesn't mean you have to be inactive all that time! Angi will fill you in. In the meantime, we have a series of FAQS on breast reconstruction, including saline implants, that I think you'll find useful. Good luck - PJH