Quick Transmigration: Oh No! Did I Become Someone’s White Moonlight?

Looking for a Novel, Specifically One with a White Moonlight

At the start, the heroine transmigrates to ancient times in a spiritual state, while the male lead is an egg. She hatches him, then thinks he's a duck, but it turns out he's a dragon. I think there's also a System, and later on there's a bit of quick transmigration. It was my white moonlight. This was probably a novel from six or seven years ago.