Congratulations! I'm a new mom too! Anyway, incontinence is quite common following pregnancy (interestingly, even in the case of c-section, as it is generally the weight from pregnancy more than a vaginal delivery that causes the pelvic floor muscles to weaken). Usually the incontinence goes away with time, but at eight months out it's probably time to start looking for a solution. If your ob/gyn isn't very helpful, you can try talking to your primary care physician, and if he or she isn't helpful or knowledgeable, then I'd recommend seeing a urologist or a urogynecologist. It sounds like you have something called stress urinary incontinence. Most docs will want to start treatment by trying pelvic floor exercises (Kegels). Your doc might send you to a physical therapist or for biofeedback to learn how to do the exercises correctly and to get into a routine. If that doesn't work, there are surgeries that might help.

Also make sure that the doctor checks you out for something called pelvic organ prolapse, which can sometimes happen after pregnancy and childbirth, and can cause incontinence.