hello everyone. How do you say PANG ILAN KA SA INYONG MAGKAKAPAT

It is impossible to say in English without sounding wierd or unnatural.
“What order were you born in among your siblings”.“What is your birth order among you ang your siblings”What we would say in English 1. Are you the oldest or youngest child.
2. How many siblings do you have.What I answer when Filipinos ask “ PANG ILAN KA SA INYONG MAGKAKAPATID”A: Panganay ako sa aming magkakapatid.