Situation: Elvira is a 26 year old woman you admit to a birthing room. She’s been having contractions 45 seconds long and 3 minutes apart for the last 6 hours. She tells you she wants to have her baby “naturally” without any analgesia or anesthesia. Her husband is in the Army and assigned overseas, so he is not with her. Although her sister lives only two blocks from the hospital, Elvira doesn’t want her called. She asks if she can talk to her mother on the telephone instead. You assess Elvira’s uterine contractions. In relation to the contraction, when does a late deceleration begin?