Yeah game requires a few mods to run well especially for sandbox, family, and legacy players. I'd recommend the no culling mod, the MC command mod, and the no crib mod. Two can be found through the MTS site and the no crib mod can be found here which frees the baby a little.
No crib mod: http://www.simsstudio.ru/2015/04/baby-and-crib.html
Hanging crib: http://sims4updates.com/hanging-crib-by-liko/
Wood crib set: http://dreamcatchersims4.tumblr.com/post/117365874240/miralke-nursery-conversion-1k-followers-gift
Baby skin replacements with hair: http://mysims4blog.blogspot.com/2015/01/baby-makeover-default-replacement-by.html
http://faetale-sims.tumblr.com/post/110235640704/and-here-it-is-finally-my-default-replacement
http://chisimi.tumblr.com/post/116032094727/here-we-go-my-first-default-replacement-baby
http://inabadromance.tumblr.com/post/115809450729/09-04-updated-tou-at-bottom-default-replacement
Crib replacements which conflict with the no crib mod: http://inabadromance.tumblr.com/post/117064288779/inabadromance-default-replacement-update-non
Enjoy!
