how different is it having 3?

🤍🖤
Hi girls, I'm just wondering how different it is having a third child? 
I have heard people say it's not much different than having two unlike the jump from one - two.
Then others have said it's a lot different and find it much much harder.
I have two already, 6 with learning and behaviour difficulties, a 2 year old and in my first trimester with my 3rd.
Thank you ❤️