I wanted a girl. but we were soooo sure we were having a boy. even the OB hinted that it was a boy (to DP, when I was out of hearing - I said I didn't want to know the gender, and DP did), I saw a chinese medicine doctor, who assured me it would be a boy. absolutely everyone was certain. boy boy boy.
me, I didn't really want a boy, but I got used to the idea. we referred to the baby as "he"
when she was born, (UC) I didn't even check. I was just holding her, marvelling. I said "wow, he has red hair! he has my chin dimple! he's breathing! he's so beautiful!!!" etc. after about 10 minutes, someone said "is it really a boy?" only then I thought to check.
GIRL!
later in the day, DP made some masculine-gendered comment, and I corrected him, saying 'she's a girl'. he said he didn't believe me and told me to check again. so I did, and yep, girl

then he said "move out of the way, I have to check for myself."

5 years later, she's still a girl

and you know what; if we were meant to know what gener our babies are, god would have put a window on there. on this one, intuition isn't always right, and you love your babe anyway, and live your life.
