How do you make your baby grow up on sims life stories

You can just wait for it to grow up naturally, i think that when you hold the baby on its birthday you will have the option help with birthday or something like that...
i don't think hat it takes long for a baby to growup (mayb a few days or somin)
or you can use a cheat (boolprop cheat then tombstone of life and death then age baby) to make it grow up straight away (but save your game first because it doesn't always work for me) also it can mess up your game after to much use as with any cheat.
if you didnt work out what i meant b4 with the cheat you need to do this...
CTRL SHIFT C to get the cheat box up
then type in the boolprop cheat (sorry i cant remember what it is exactly but its something like boolproptestingcheatsenabled true)
then click on any sim (whilst pressing shift) and select spawn then tombstone of life and death (it migh say L and D but same difference)
then a tombstone will appear somewhere on the lot
click on it and find age baby (you will need to click more a few times, i think)
there might be 3 of them all slightly different but i don't know wich one it is so your on your own there (i sugest trial and error, save your game and try each one until it works, try the one that's not in caps first coz i think that it might be that one)
i think that tw of them make some random adult sim appear and one (the right one) ages you baby into a todler.
after the baby stage you can use an easyer and generaly more reliable cheat to age sims (use the sam boolprop cheat but instead of the whole tombstone of L and D thing select the sim you want to age then "shift click" the maibox and select set to birthday, or somin like that, and it will be that sims (the active sims) birthday and the normal birthday stuff should apply)
you can also stop all sims on the lot from growing up by using the cheat "aging off" (or "aging false")
you turn aging on again using "aging on" (or "aging true")
if it doesn't say anything like error then you know it worked I hope this helpd (if it didnt im sorry)
btw...
It is bad to use cheats to often (you are warned not to) and it can messup your game quite badly
i used cheats alot and my sims started getting deleted randomly and i ended up basicly having o reset my whole game... not fun!
but there are some that its fine to use and that don't have any bad effects (this is NOT one of them)
you have been warned!
(there will be alot of speling mistakes in my answer, this isn't because im stupid its just because i cant be bothered to spell everything well because you can still read it so thers no point in the effort of adding those stupid vols or apostrophys etc... well and its a little bit that i cant spell, but you cant complain because im doing you a service).