I noticed that my right breast dropped lower than my left breast, could it be a ruptured implant? Should I get an MRI? (photos)

Your right breast appears to be normal, but you left breast is somewhat high and may yet need to drop, or may be developing a capsule. Some implants take the full size months to completely drop. Don't waste money on a MRI, but go back to your surgeon.

I would definitely make an appointment with a board-eligible or board-certified plastic surgeon who has the capability of performing an adequate physical exam and potentially in-office ultrasound. There are many different reasons that you could have this asymmetric but the most likely causes based on your preoperative and postoperative photos would be 1) inadequate pocket dissection2) inadequate planning of new incision and pocket dissection3) placement of significantly different implants 4) left capsular contractureAgain, these are possible options but the true solution can only be reached by seeing a board-eligible or board-certified plastic surgeon.

Hi & thanks for your question!
Reach out to your surgeon to have a breasts looked at. He or she will schedule whatever possible test is needed. Best wishes!