The traditional theological view asserts that the Mother of God gave birth without pain, as clearly expressed in the Gospel account of the birth of Christ.

The Paradox of a Painless Birth and Shared Suffering

The traditional theological view asserts that the Mother of God gave birth without pain, as clearly expressed in the Gospel account of the birth of Christ. According to this view, traditional texts indicate an absence of difficulties related to labor pains and emphasize the supernatural nature of the Savior’s birth. Nevertheless, theologians note that the Virgin Mary herself experienced her suffering not during the process of childbirth, but at the moment of her Son’s suffering. In other words, rather than enduring the pain of labor, she shared in Jesus's suffering, displaying profound maternal compassion and humility while remaining unwaveringly faithful to the will of God.

Supporting citation(s):
"Having given birth to the Son, the Most Holy Virgin herself swaddled Him and placed Him in the manger. With these brief words, the evangelist informs us that the Mother of God gave birth without pain." (source: link txt, page: 3)
"After the natural period of gestation, the Mother of God gave birth to the Savior painlessly— a bodiless God clothed in flesh, a transparent stream of immortality and eternal life." (source: link txt, page: 10)
"Yes, and how could the One who bore God... But this blessed one, endowed with supernatural gifts, who avoided the pains of childbirth, underwent them during the suffering (of her Son), when maternal compassion tormented her womb..." (source: link txt, page: 13)