yup i started a thread on this topic when i was preg with #2.
I cant remember who just said it but i totally agree that no matter what the sex you still feel sad that you dont get the other!! - I finally had a girl this time and even though i was sooo over the moon, for the first week or so after - i had a pang of disapointment that i didnt have a boy!!!

weird i know!!! and even tho i had so much fun doing the pink thing - i cried putting the boys things away!!
with #1 i thought he was a girl so was upset.....for like 5 mins when i found out he was a boy...
with #2 i "knew" he was a boy and actually wanted another boy so was excited when i found out at 20 weeks BUT still had a pang of disapointment that again i didnt get a girl....altho for me it was more of a guilt thing bcos all my family were waiting for me to produce a girl!! (all boys on the maternal side).