[–] crodish 3 points Edited

Observed female at birth = female*

Observed male at birth = male*

*very minute percentage of these babies will have Differences of Sexual Development that might classify them wrongly based on external genitalia**, but are still either male or female

**even smaller percentage of babies are born with ambiguous genitalia which need proper discerning via testing, but these babies are still either male or female depending on which gamete production their body supports. Large = female, small = male. Human hermaphrodites and sexless humans are fictional concepts and do not exist.

know inside you're not

A mental disorder that only makes you think/believe so. Your physical body is still only male or female, again, based on what gamete your body's blueprint is based on. Humans can't change sex, stay "cis".