There are no female or male darkspawn. Broodmothers are special ghouls that produce darkspawn, but are not darkspawn themselves... technically, anyway.
The Architect in The Calling was referred to as "it" and I forget if Awakening ever referred to the awakened darkspawn as "he" at any time.
The process on making a broodmother is not entirely known, except for that one poem that is said in Origins... which is the stuff of nightmares right there, no need to get into details...
As for the baby hybrid thing... I would guess it would be no different than a human/dwarf child. Dwarf/Qunari, though... Ugh, they should really stop the whole hybrid thing when it comes to different species like this.
For some reason, I was reminded of the martians in John Carter of Mars, and how they lay eggs. Yes, eggs. If you saw the movie, the love interest would lay an egg. I think Qunari should lay eggs.