for the first time in one's life
by nature; naturally; by birth; inborn
by nature; by birth; naturally; natural; innate
since one was born; (in) all one's life
since one was born; in one's (entire) life; in all one's life
natural; intrinsic; from birth
being completely naked; (in) one's birthday suit
being born between January 1 and April 1 (school entrance date)
putting the cart before the horse; (lit.) putting the diapers on before (the baby) is born