220cc implant - will it make a difference on a current A cup? (Photo)

Without an examination in person or photos it is difficult to render a specific opinion or treatment recommendation, but based on your question it is likely you are a good candidate and the Motiva Ergonomix is an excellent choice. I suggest getting your implant placed subfascial. Best of luck to you.

Choosing an implant size/style is an important decision which is best made in concert with your surgeon. Ultimately, options are based on a number of factors including:
-Chest dimensions: This point is crucial as the width of your breasts defines the available "real estate" on which the foundation of your augmentation is built. This "foot print" is the absolute limit with which you are dealing. Too "large" is not so much the risk as too "wide." You cannot build a 3 acre mansion on a half acre plot. An implant which is too wide (exceeding the available space on your chest) will generally over hang laterally making it more noticeable and occasionally contributing to discomfort and nerve symptoms (numbness or tingling). This will also contribute to a more unnatural look.
-Tissue quality: This relates to size in the sense that the implant will be suspended by your tissue. Too large an implant may place took large a stress on these suspending tissues leading to healing problems in the short term and bottoming out in the long term.
-Patient desire (what is the look you are hoping to achieve?)
My role as a surgeon is to manage expectations and guide you towards a prudent choice which can satisfy these reasonable goals. Often times, a surgeon can guide a patient toward a size/cc range and patients will make determinations on implant style/profile. Patient seeking more or less projection, or seeking a more pronounced or subtle upper pole volume increase can be guided toward an implant which will help them best achieve their goals. Additionally, technique variations (sub muscular vs. sub glandular) can also aid in obtaining the look you desire.
There are a number of tools available to help guide patient/surgeon decision making including sizers, 3D imaging and goal photos. Each modality can help better communicate your goals to your surgeon and vice versa.
Ultimately, it is important to not marry oneself to a particular "cc" as oppose to a particular "look."
With regards to your specific question, I typically recommend limited physical activity for 1 month with an aim to resume full activity by 6-8 weeks.
Communication is key as you and your surgeon create your custom surgical plan.
As always, discuss your concerns with a board certified plastic surgeon.

A 220cc mini profile implant will give you a conservative enhancement. Without photos or an exam it's difficult to determine if it would be recommended for you based on your frame and desired result. Under normal healing circumstances I advise my patients they can resume strenuous activities six weeks after surgery. It is best to go slowly and build back up to your previous exercise level.