Is possible to get implants from 34DD natural breasts to an F cup? (Photos)

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  It would be very helpful to include additional photographs of your breasts with you standing upright in order to evaluate your breasts for ptosis, or sagging.  It would be important to determine if you need a lift in addition to an implant.  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.
Harvard-trained plastic surgeon

Your photos show very generous breasts that I would speculate are ptotic to some degree.  A lift would help that.  Placing implant (especially if large ones) will contribute to long term problems that will require downsizing and the need for more lifting procedures.  You would have to really have some great reasons if you were in my office for me to agree to placing implants in you...