As there are already loads of contradictions in there (did God create the animals first, and then Adam, or Adam first and then the animals?) and you still say it's 100% correct. One more contradiction will not change that, surely.
Btw, where does it say that Jesus died a virgin, or that he did NOT "know her". She certainly behaved like a grieving wife/widow at the crucifixion and burial of Jesus.
It's sad that these people don't understand that it would be MORE believable if the different books in the Bible were to be seen as just that; different people's version of what happened, not the inspired Word of God. We humans do errors all the time, we don't remember correctly, we spell wrong, we forget things. Almost all contradictions can be contributed to this. But if there is a divine perfect being behind it all, there should be continuity all over, and no contradictions whatsoever. Or God is bipolar, but that's hardly "perfect".