Is childbearing sinful?
And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt offering, and a young pigeon, or dove, for a sin offering, unto the door of the tabernacle of the congregation, unto the priest: Who shall offer it before the LORD, and make an atonement for her. Leviticus 12:6-7
Be fruitful and multiply. Genesis 1:28, 9:1, 9:7, 35:11