Ultrasound of a baby at 16 weeks. See the baby's head, nose, lips and chin as he lays on his back. The heart is seen in the chest. It beats at 120-180 bpm. The spine is seen along the lower part of the image.
Nobody knows for sure, but it's possible.
Read her quote again and think of all the little babies dancing in their mother's womb right now. At the moment of conception, a life starts. And this life has its own unique set of DNA, which contains a blueprint for the whole genetic makeup. The sex is determined. We know there's a life because it's growing and changing.