I’d like to point out a couple of things that would’ve made snowing realize that it was a baby instead of a dragon were they not blinded by stupid mode of parenting.
1) mal said on many occasions that she was going to have a baby, not a dragon
2) eight of their friends/ confidants were hatched from eggs (rip stealthy)
3) mal has the ability to be human or dragon. And she stays human a good majority of the time. So 50/50 chance it’d be a baby on that point alone.