Soon after childbirth, a new pregnancy occurred, doctors cannot accura…

Soon after childbirth, a new pregnancy occurred, doctors cannot accurately calculate the due date. Ultrasound showed the gestational age was two weeks shorter than according to menstrual cycles, but as they were the first ones feeding, they believe in ultrasound. There were problems with the cervix, at 37.2 they removed the speculum because the baby had matured on ultrasound, it was 3500 and corresponded to the 39.2 week. The opening was two fingers at that moment, the doctor thought that the labor would start immediately, but passed half a week, and still silence. I think how long they will wait if everything doesn't start by itself? Past births were at 38.1 with weight 3kg,