As asked this appears to be a "truth question" rather than a creedal one so I will attempt to answer from a scriptural rather than creedal perspective.
The idea that Jesus created his own body is explicitly denied in Hebrews:
[Heb 10:5 ESV] (5) Consequently, when Christ came into the world, he said, "Sacrifices and offerings you have not desired, but a body have you prepared for me;
To make this reproof of creedalism even more explicit is the fact that his body was defective when it emerged from the seed of David because the same verse says that God "repaired" the body for Christ:
[Heb 10:5 MGNT] (5) διὸ εἰσερχόμενος εἰς τὸν κόσμον λέγει θυσίαν καὶ προσφορὰν οὐκ ἠθέλησας σῶμα δὲ κατηρτίσω μοι
Thayer's Greek Lexicon
STRONGS NT 2675: καταρτίζω
καταρτίζω; future καταρτίσω (1 Peter 5:10 L T Tr WH (Buttmann, 31 (32); but Rec. καταρτίσαι, 1 aorist optative 3 person singular)); 1 aorist infinitive καταρτίσαι; passive, present καταρτίζομαι; perfect κατήρτισμαι; 1 aorist middle 2 person singular κατηρτίσω; properly, "to render ἄρτιος, i. e. fit, sound, complete" (see κατά, III. 2); hence,
a. to mend (what has been broken or rent), to repair: τά δίκτυα, Matthew 4:21; Mark 1:19 (others reference these examples to next entry); equivalent to to complete, τά ὑστερήματα, 1 Thessalonians 3:10.
b. to fit out, equip, put in order, arrange, adjust: τούς αἰῶνας, the worlds, passive Hebrews 11:3 (so, for הֵכִין, ἥλιον, Psalm 73:16 (Ps. 74:16); σελήνην, Psalm 88:38 (Ps. 89:38)); σκεύη κατηρτισμένη εἰς ἀπώλειαν, of men whose souls God has so constituted that they cannot escape destruction (but see Meyer (edited by Weiss) in the place cited), Romans 9:22 (πλοῖα, Polybius 5, 46, 10, and the like); of the mind: κατηρτισμένος ὡς etc. so instructed, equipped, as etc. (cf. Buttmann,
[Jer 33:22 KJV] (22) As the host of heaven cannot be numbered, neither the sand of the sea measured: so will I multiply the seed of David my servant, and the Levites that minister unto me.
[Jhn 7:42 KJV] (42) Hath not the scripture said, That Christ cometh of the seed of David, and out of the town of Bethlehem, where David was?
[Rom 1:3 KJV] (3) Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh;
[Luk 1:35 KJV] (35) And the angel answered and said unto her, The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy [IE: "repaired"] thing which shall be born of thee shall be called the Son of God.
Of course, those who are beholden to Catholic creeds are bound to a different viewpoint.