Well I was dead as soon as I exited my mother's womb, and brought back with resuscitation techniques and promptly died two more time due to lack of oxygen from strangulation of the umbilical cord.
So you know...
Probably 10.
Fun fact: Traditional Chinese culture counted gestation and, as a result, considered newborns to be the age of 1. On top of that, rather than marking birthdays, everyone ticked up simultaneously on Chinese New Year, meaning if you were born just a few days prior, you could be 2 within days of your first breath of air.