Not an AIBU just posting for traffic.
NC as could be outing.
DD is 3.5 and attends school nursery, she has been there since Easter and had settled in fine.
Twice last week I was told by the teachers that she's bitten someone in her class. The first one was because the child kept taking her toys off her and the second was because her best friend didn't want to play with her anymore.
This is out of character for her. The teacher explained it as though she just got filled with anger and did it.
How on earth do I handle this? I've tried having a calm chat with her and it didn't work. I've tried telling her off and and bit herself 
I'll also add that she's recently found out that I'm expecting a baby so I don't know if this has anything to do with it?
I've brought her a book about biting and hope that will have a positive impact on her.
Any other suggestions? It really upsets me that she feels so angry she needs to do that, especially when she bit herself