There is your phenotype, which is what you look like, your psychological sex, which is what you feel like and which usually the same as your phenotype and related to how you have been brought up.
There is also your gonadal sex which is whether you have ovaries or testicles and your chromosomal sex which is what combination of x or y chromosomes you have.
Anyway, the IAAF decided to run gender tests on her, and upon the results, i.e. if she's male, she will be disqualified. So the results won't be in for another couple of weeks.
You can read more here.