Hey^^
1. Yea, there's an objects you can spawn, it's either sim modder or Tombstone of L and D, and you can select 'Get pregnant with...' and then choose any sim that is currently on the lot.
2. I think inteen works but it's unsupported for new expansion packs.
3. fave cheats:
'boolprop testingcheatsenabled true' - good for spawning stuff
'boolprop snapobjectstogrid false' - good for positioning furniture without as many restrictions
'allmenus on' - see this link:
http://www.jd-movies.com/allmenus.phpmakes more interactions available.
I also like the slow motion cheat - 'Slowmotion [0-8]' where 0 is normal speed and 8 is slowest speed.
I also love the custom pose and face overlay objects [I think they're on modthesims2] - they're great for photos!