I feel your pain and frustration my friend and can only ask that you continue to be loving and patient and understanding for what your wife is going through. It may help to educate yourself on the effects of antidepressants and sex and postpartum depression to see what she is going through. She needs your emotional support and realistically it maybe the better part of 2 years before she and her doctor get a handle on what's going on and find away to deal with it. Just be a good attentive husband and really good father now. You are not alone as many suffer women the same thing. Hang in there and help where ever you can.
