“你竟然是女的” 用英语怎么说

语境...
我这句话说出来一定要悍气!!!
oh no,you are a fucking girl !
understand??

oh, my god! you are a woman!

Girl you are~!!- -~!

omg, you are A GIRL!

OMG, you are a girl, how could be that!!

You are, out of my surprise, actually a girl.