I’m currently a 34 B. I’m planning on doing gummy bear implants to achieve the full C/small D look.

It is important to have a good idea of what size you would like to be after surgery, and bringing photos is a more helpful than 'a full C cup' because we have no standard for how big is a C cup vs. a D cup.  'Gummy bear implants' are are silicone implants that are form-stable, and a 300 cc (or gram) saline vs."ideal" vs. silicone gel implant will all appear about the same size.

At
size 34 B, each 100 cc of implant corresponds to 1 cup size change.  If you want a small increase to size C or D,
you would only need 100 cc to 200 cc. 
Since you have breast fed 4 children you have drooping and need a lift
as well as augmentation.  Unfortunately,
you have not provided photographs but you may benefit from a modified Benelli
technique.  This would lift your breasts
and reshape them creating upper pole fullness. 
For small increases, fat transfers may be superior to implants because
they will not have long term complications and need for revisions.Best Wishes,Gary Horndeski, M.D. 

I routinely perform a Vectra 3-d simulation for all of my breast augmentation patients in order to take the guessing game out of breast implant based surgery.  The Vectra 3-d simulation machine takes a picture of YOUR breasts and allows a thorough consultation to be performed showing YOU, the patient, exactly what different implant sizes, shapes, profiles and manufacturers look like on your body.  The simulation will point out any and all asymmetries and give you a chance to pick the size and profile of your implants after you see what they look like on YOUR body.
I highly recommend that ALL breast augmentation patients have this done prior to picking a size for their breast augmentation.

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  The size, profile, and shape of the
implant is based on your desired breast size/shape, your chest wall
measurements, and soft tissue quality.  This decision should
be based on a detailed discussion with equal input from both you
and your surgeon.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

Hi. In a personal evaluation a PS will be able to recommend you the adequate CC for your breasts according to your torso diameter, height, weight and hips measures. Gummy Bear implants are Silicone Cohesive Gel implants, its just the popular name for them.International Member of the American Society of Plastic Surgeons
Member of the International Society of Aesthetic Plastic Surgery

 Online consultants will not be of much specific help to you.  

 My best advice: further communication with your plastic surgeon.  It is definitely worth spending more time (prior to the date of surgery) with your plastic surgeon to discuss further.  As you know, it will be important for many reasons, that you feel comfortable that you and your plastic surgeon are on the "same page" prior to proceeding.

  Ultimately, careful communication of your goals (in my practice I prefer the use of goal pictures, direct examination/communication in front of a full-length mirror, in bra sizers, and computer imaging) as well as careful measurements (dimensional planning) will be critical.

Generally speaking, the best online advice I can give to ladies who are considering breast augmentation surgery ( regarding breast implant size/profile selection) is:

1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.

2. Have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining breast implant size/type/profile will most likely help achieve your goals. 
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. For example, I have found that the use of words such as “natural” or "full C or small D cup” or "proportionate" etc means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup size may also be inaccurate. Again, the use of computer imaging has been very helpful during the communication process, in our practice.

3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually made during surgery, after the use of temporary intraoperative sizers.
 
Best wishes for an outcome that you will be very pleased with.

Your best bet is to look at pictures of breast sizes you like and bring them with you to your consultations. See at least two or three experienced breast surgeons in your area who can help find the implant size and style that is best for you.

Hello. Thank you for your inquiry.

It is important to have an in-person assessment regarding your concerns as it is difficult to determine virtually.Cup sizes are usually quite difficult to calculate as everyone has a different starting point.
There are many different factors that go into choosing a breast implant size which will correspond with your body dimensions while concurrently achieving your aesthetic results. Some of these factors are: Implant size (CC's), Implant profile (Low, Moderate, High), Placement of the implant (Subglandular vs. Dual Plane) etc. We utilize smooth round cohesive silicone gel 'gummy bear' implants for the best results.
During a consultation your aesthetic goals are heard and taken into account with the measurements of your breasts and the integrity of your tissue, as well as level of ptosis (sag). From here we collectively can find your 'perfect fit'. You are able to try out sizers and different implants in our office such that you can get an idea of what size you would be post-operation. We also offer Crisalix 3D plastic surgery virtual simulator during our in-person and virtual consultations to preview potential results. After your consultation, you will receive your very own implant sizers to take home with you (at a small cost) whether or not you decide to go forward with your procedure.
I usually recommend that my patients stop smoking, take vitamin C daily, and avoid aspirin/ibuprofen and vitamin E 3 weeks prior to surgery. I specialize in the 24-hour Recovery method which minimizes trauma to the breast and decreases pain post-operatively.
We encourage you to look at our website and Instagram (drkaraplasticsurgery) for lots of before and after pictures!
Please note that this response does not substitute patient-doctor relationship. We welcome any and all patients seeking advice to come in for a complimentary consultation available for limited time only.
During the COVID-19, we are offering complimentary online consultations as well as in-office consultation with social distancing and masks. Procedure done in-hospital private surgical facility while taking covid-19 precautions. We utilize UV-light to clean the air of viruses and bacteria during our consultations and surgery.
We invite you to come in to discuss your options more thoroughly. Please send us an email at info@drkaraplasticsurgery.com with the subject line: "Attention Meagan" and we will be happy to coordinate your appointment!

M.Kara,MD,FRCSC (27+ years experience) - Specializing in 24 hour recovery/ out to dinner breast augmentation in-hospital private surgical facility for your added safety and peace of mind