It's not necessarily an empty womb, maybe it's just that Jesus is invisible, like his dad. I mean seriously the reason you can't see YHVH sitting in Heaven on the clouds on his throne is, according to Christians, because he's invisible and you can only see him in the moments of pure belief (like Christians on this forum who have seen him up there tell us).
https://youtu.be/eT4P6bd7A80
https://youtu.be/eT4P6bd7A80
teachings of the Bible are so muddled and self-contradictory that it was possible for Christians to happily burn heretics alive for five long centuries. It was even possible for the most venerated patriarchs of the Church, like St. Augustine and St. Thomas Aquinas, to conclude that heretics should be tortured (Augustine) or killed outright (Aquinas). Martin Luther and John Calvin advocated the wholesale murder of heretics, apostates, Jews, and witches. - Sam Harris, "Letter To A Christian Nation"