3 weeks post lift w/ implants. If I put back on sports bra with lift is it possible to reshape boobs back to the way they were?

Then doc said wear underwire I did at week 2 I noticed in week 3 one boob started changing shape do you think it's because I started wearing the underwire he said it would relieve the pressure off the pocket and he didn't want the weight of the implant pressing on that pocket but since the underwire I noticed 1of my boob started looking different it's only been three weeks since my surgery if I put back on the sports bra with Lift is it possible I can reshape my boobs back to the way they were