if your bub was concieved from day 9 BD then most likely a girl, as boy sperm dont live as long so the girl sperm would have been hanging around early waiting for the egg. its possible day 16 was the day and a boy is more likely then but eggies dont live very long after they pop out, some say 24hrs at most, so who knows???? your ph level at the time also has a lot to do with it. if you eat more eggs milk and vegies a girl is more likely, if your into salty foods rice potatoes bananas then you,ve got boy vibes. but i am no expert, this is my research so far.
some people also say if you concieve in the "first quarter" of the moon, a boy, and in the 3rd quarter of the moon for a girl ????? if you go for that kind of stuff???
but hey.... i am just little old me, dont quote me on it!