I'm at month 4 now, and would second @Scarlett :)
I’d say month 4 for the sleep regression! Newborn they sleep a lot x
I’ve also organised one, I’m having her come after 2-3 weeks to take the pressure off, everyone I’ve spoken to has really seen the value, it’s about rest for you and your partner. We also have no family near by so feel very lucky can organise this.
Honestly at 6 months lol. The sleep regression is awful. For us it is anyway and I’m finding it way harder than the newborn stage as at least baby would sleep during the day then but now wants attention during the day while I’m functioning on barely any sleep
When husband isn’t around.
Probably the first few days whilst you are recovering from birth and adjusting to no sleep 😂