Yea, cause 18 year olds never impregnate their 14 year old summer flings.
Look christianity has a few undeniable features.
1. Santa Clause ; Saint Nicholas
2. Easter Bunny; Saint Henry, Joseph, Judas
3. Islam likes our saints, Maybe the guy writing the book was a descendent of one
4. Buddhism comes along later, same story new material and pharaoh cat god statues
5. Later day saints proof that knowledge of Saturn still bares fruit.
6. We have libraries full of post "rosetta stone" knowledge; napoleonic start
7. The Islam book and Christan book ~1600 AD, 1200 etc etc; "Vatican Important".
Jesus did the right thing marrying Mary after he returned and she had child.