stressed.

hello mummies. is it normal to feel stressed in my early stage of pregnancy? lately ive been quite stressed that i keep shouting and venting my anger on my kittens whenever they poo and pee all over or even make noises when i put them back in their cage to sleep. i was diagnosed with depression and anxiety about oct last year, on medication since early this year but stopped as my mood is better then and both my fiancè & i agreeed that since im pregnant i should try to stop taking it.