Nadir Salaues Hurtado, MD

Thanks for your question, you should wait at least six or nine months after your pregnancy to recovery completely also allows your body to heal and get back in shape and lost your pregnancy weight, after that time you should schedule a consultation with a board certified plastic surgeon.

Thanks for your question, first at all the results from your last surgery are quite nice, but in regards of your concerns about your back, I suggest a liposuction to get a better body contour if you dont have to much skin laxity/excess of skin from that area of your interest.
I highly recomended schedule a consultation with a board certified plastic surgeon that has experience with this procedure.

Thanks for your question.
Liposuction is not a metod for weight loss program, for that,  you should better choose, change your alimentation habits and do more excercise.  However, with a BMI over 30, patients are considered obese are at risk for many health concerns that could improved after a appropriate weight lost. 
I highly recommend scheduled an appointment with a physician who specialize in weight loss, that might be your best way to start for the best to you and your three children.
After the weight loss and an more appropriate weight you can schedule an appointment with a board certified plastic surgeon that will evaluate your case, guide you and answer your questions, taking into consideration that you are a mother of three babies you probably are candidate for a mommy makeover but it deppends that evaluation and expectations.

Thanks for your question and photography.
first when you got your weight goal reached, that would be more appropriate to reveal the real change of the tissue, you are a really good candidate for both breast lift and breast reduction candidate.
I highly recommend to schedule your appointment for consultation with a board certified plastic surgeon that will guide you and clarified all your doubts.

Thanks for your question, Maybe you dont wanna hear it but its too early to make a judgement, the process of healing is just beginning and you need to wait at least sixth months to see the results at postop, so for now its acceptable.
I highly recommended keep in contact with your surgeon, follow the postop instructions and discuss your concerns with him.