What’s the worst stage of a baby

For me it’s was 6 months (adjusted age 4 months) she screamed for days on end and was just so fussy and frustrated. She had a sleep regression at 10 months but other than that easy peasy.

It was by FAR 10 months for me.

2-3 years. But I guess that’s more toddler. I think the hardest thing at any age is when they can’t communicate and/or you dont understand why they’re upset.

I found month 8-9 really hard. Sleep went out the window, teething, fussy, wanting to crawl everywhere and hated being held when out and about.