All the day she was fine but at 9 pm she feels tired, sleepy and uncomfortable? Don't want to talk with anyone?

If your wife is pregnant it's very common to feel tired and sleepy. Let her rest.
This article will be helpful for you
5 Ways in Which a Husband Can Support His Wife During Pregnancy!!

Happens due to hormonal changes...should be fine...let her relax...

Very common as hormonal changes's ok..give her some time and talk to her as to how she feels..also if she wants she can go for a little stroll..listen to some music or read a book which can help divert her mind to something positive