Recent Breast Augmentation with implant concern?

I am 3 weeks post op from having a breast augmentation. I have a concern, and need to know what opinions I can obtain to ease my mind. I had a augmentation due to weight loss, and kids, I was a small B and they were low and very loose. I am 5'9 and went with saline under the muscle, I had a crescent lift on the right breast which was my larger breast. I had 550cc in the right breast and 600cc in the left breast. I love the size, and very happy with the lift, and happy with the look of my left breast. My concern is that the right breast is very RECTANGULAR, and the implant is obviously high, when I bend over my saggy small breast still dangles and my implant is in my chest wall. Will the implant ever move into the breast pocket or do I for see a redo on the right???????