Article continues below advertisementJustin Bieber admitted to a "tense" moment during the birth of his son, Jack.During a Twitch livestream on Monday, October 27, the pop star, 31, revealed he was "butting heads" with the doula, prompting his wife, Hailey, to encourage him to apologize.Justin believed the woman was "pushing [him] to the side" when he felt the "need to console" his woman.Article continues below advertisementSource: @luvshelo/XJustin Bieber was frustrated with the doula while his wife, Hailey, was in labor."I'm sorry, my emotions are heightened.