SO! My question: How might 2 Wizards magically produce a biological descendant infant while skipping the messy conception and pregnancy steps? What creative combination of magical processes would create an offspring that is genetically made up of each of the Wizard parents, and possesses a soul? That would be as much like a naturally created baby, but without the natural steps?
Question #1: Would two lawful minded beings ever consider such an nontraditional process as this? Is there anyone you are likely to upset by going about this, up to and including gods of childbirth?
Answer #0: That's entirely up to your DM.
Answer #1: The Clone spell allows you to duplicate yourself. It would seem a simple variant of the spell to produce a being which is not your clone, but composed from the union of the parents flesh. As a DM I would totally allow you to use the Clone spell plus a few weeks of research to at least get the body going. However, as the Clone spell doesn't produce a soul, this wouldn't solve your problem. Also the Clone spell is 8th level, so I got to warn you that what you are asking to do might be beyond your current ability.
Answer #2: The obvious way to go about this would be with some sort of demiplane or time altering magic. Unfortunately, both examples of that are 9th level spells, so as a DM I'm not going to let you create a pocket dimension where you can go spend 9 months being parents before you can cast 9th level spells.
Answer #3: I think conception is the hard step here methodologically speaking. In all the myths I can think of, getting life without going through the natural process is HARD - possibly beyond most deities. But once you have life, sustaining it and maturing it in an alternative way is relatively easy. So what you need is a surrogate parent of some sort. The easiest surrogate parents would be a willing living being. Probably species doesn't even matter that much for the purposes of sustaining it - this is fantasy not real world biology. In my opinion as a DM, it is well within the powers of a Limited Wish to transport a fetus from a willing target to another willing target. So make the baby, and then start spending Limited Wishes until the baby fails a saving throw, to move it to a new home of your choosing. Somewhat more difficult, but still probably within the abilities of a pair of 14th level wizards, is a magical artificial womb. However, I suspect that unless you are provided with the plans for one, the downtime to research and create one will exceed 9 months.
WARNING: Your surrogate mother is likely to have a magical influence over your new kid. So for example, if you move the baby into a willing she-wolf, don't be surprised to have a werewolf for a kid. This probably goes double for your magical artificial womb. Kids born from one of those are probably guaranteed to be autistic savants. You'd be doubling down on your kids lawful parentage.
Answer #4: Make a bargain with someone more powerful than yourself. There are almost certainly greater spirits which, would be more than willing to make some sort of deal by which you give your kid (born or unborn) to them, and they undertake to rear it to whatever life stage you desire in whatever time frame you desire. Beware that the price you pay for such bargains is almost certainly more than you want to pay.
Answer #5: If you can't do this yourself, you probably can manage to go some place you can. There are a nigh infinite number of preexisting demiplanes out there, many of which have time flows that are radically different than the consensus flow of time on the prime material plane. Some of them have time that flows much faster than normal time. Some of them have time that flows much more slowly than normal time. Use divination to determine how to locate a demi-plane with desirable characteristics. Enter the demi-plane, bake the kid in the "oven" in the normal way, and pop back out into the normal time stream a day later. Turn the infant over to an appropriate nanny, and you're done.
Bonus Answer: No, the fact that you can polymorph into a dragon in no fashion whatsoever suggests that the offspring will be part dragon. Now, if you can arrange a deal by which a dragons sterile egg becomes the home of your offspring, and a bronze dragon hatches your kid from an egg, that might make for a distinctly dragonish parentage. Alternatively, if you are going to go the route of a magical conception, no one says that you only have to use two parents. However, be prepared for anything unnatural like that to go SPECTACULARLY badly.
