Breast feeding

Sunday July 31st @ 11:30pm my water broke . I was six months into my pregnancy, and it just happened out of nowhere. So I had no clue on what was going on and the following day I called my ob office . Had to leave two messages and later they returned my call. So I went in and the only thing they did was a urine sample . So I drove down the street to the local hospital and they rushed me in and transported me to a very good facility with the best NICU. My son was born August 6,2016 . 🤗🤗Everything is going good but I'm wondering how long does milk supply come in after a emergency c-section?