I believe you can overstuff a house with Awesome Mod, but I've never used it and was told to not use it unless I know what I'm doing. Is there any other way to increase household size, possibly with a tuner? Right now I have some of those installed, but haven't altered my game too much. I have 5 sims and 5 pets and my sim really wants another baby! I don't want to kick out any sims or animals so some advice on how to overstuff would be appreciated

you want to increase the number of sims right?
master controller does that: https://nraas.wikispaces.com/MasterController
you also need; http://nraas.wikispaces.com/PortraitPanel
these can be usefull:
http://games4theworld.bestgoo.com/t...-in-a-household
http://modthesims.info/t/439717
http://www.modthesims.info/showthread.php?t=447708

THANK YOU! This is super helpful. I'm going to try and install it now and see if it works Really appreciate you taking the time to provide both information and resources!