Poor, look at the SACRIFICE at his birth...
Luke 2:22 Then it was time for their purification offering, as required by the law of Moses after the birth of a child; so his parents took him to Jerusalem to present him to the Lord. 23 The law of the Lord says, “If a woman’s first child is a boy, he must be dedicated to the LORD.” 24 So they offered the sacrifice required in the law of the Lord—“either a pair of turtledoves or two young pigeons.”
This was the ALTERNATIVE sacrifice allowed for a POOR family, NOT the "normal" sacrifice of a lamb:
Leviticus 12:6 “When the time of purification is completed for either a son or a daughter, the woman must bring a one-year-old LAMB for a burnt offering and a young pigeon or turtledove for a purification offering. She must bring her offerings to the priest at the entrance of the Tabernacle...
8 “If a woman CANNOT AFFORD to bring a LAMB, she must bring two turtledoves or two young pigeons. One will be for the burnt offering and the other for the purification offering. The priest will sacrifice them to purify her, and she will be ceremonially clean.”