Paul never explicitly refers to Jesus’ virgin birth
Whether it is or isn't written in all the gopels and /or letters, this one thing is for sure....If she had not been, none of this would have been possible, whomever she was, if you don't believe her name to be Mary...
As you may know the Law permitted them to have their High Priest ( who had to be as pure as possible) offer up an unblemished young lamb once a year for Israels sin ...The lamb had to be without any defect whatsoever and had to be a 'virgin' too, no mix at all.....then that blood upon the mercy seat would cover them for one more year...
When God decided it was time for Him to come clean up mans mess; once for all, He chose a young virgin, who accepted the Word ( Gods seed ) from the angel, that she should bear a Holy Child...She accepted the 'seed' into herself and once the Holy Spirit came 'upon' her and added the 'power' to change that 'seed' from spirit into flesh, that 'seed' from God became a living sperm, and thereby produced a Son unto God, who by this, then became Father....
The other very important thing He did, was that the 2nd. and last Adam had to be born from blood and water, which the mother would have given out of her body at His birth.....Gods angels are NOT born of blood and water, which is an important difference in this whole plan, and will be at the end....
This was no mean feat, this !!!....God enabling basically Himself as His Word,into becoming flesh and blood in order to give rise to Gods New Creation, one which supersedes Adam AND the angles, and will finally reveal the manifold wisdom of God, in how He went about all of this, when at times it seems almost unfathomable, the way God did it...The way He made mankind spirits clothed in flesh and why...One day He will make it all plain and clear for us to see, but until then we will have to take Him at His Word, whatever Word of His, that each of you have had confirmed within your spirits....No doubt books could be written of all that God did and accomplished by and through becoming human...Before, during and after this, and all it means to us and to Him, now that He HAS done it...
I certainly hope you will push into Him and seek Him for help in this regard, so you can have it revealed to you....One other thing in this same regard, a lot of people have come out with this notion that Jesus got married and had children and those descendants are living today and that's how He's still alive, how utterly odd ( at least to me )......If He had married, He would have become impure as far as His 'work' was concerned, and He would have no longer been a pure and unblemished sacrifice....By that alone one must dismiss such claims.....I have been horrified how many people I have met who believe this, and I really don't meet that many people lol