Ask your surgeon.
When I did my mammaplasty... It were 90 days without any type of physical activity, without lifting weight, impact, nothing.
After 90 days my surgeon released me for low-impact aerobic activities and only after 6 months I was able to lift weights.
However, if your surgery was just for breast enlargement, recovery is much faster than removing and redesigning the contour of the breasts.
Again, ask your surgeon.