I hope not, that is just bad soap opera writing. He had sex with her 20+ years ago and used no 24th century protection and then she got pregnant and kept it a secret somehow.Honestly if this is her and Picard's son (which seems likely),
And it's an annoying retcon. So she would of had to of had sex with Picard near the end of season 1? It's not like the Picard/Crusher relation ship gets any advancement in season 1. Does Picard just wander over after the "Neutral Zone" epsiode and say "lets do it!"
But then she would have to leave the ship near immediately and..somehow hide it at Starfleet Medical...or what beem the baby out of her and put it in a womb? Then leave it for ten ish years, from season 3 to 3rd next gen movie?
I, myself, hope he is the son of one of them candle demons from that 7th season episode....