Wat do you reflect on am i too skinny?

hi im 23 years old something like 5' 1'' , and about 96 to 100 pounds not really sure but no more than that i wear size 0 pant. i eat my three meal a day everyday, but i consistency i dont gain no wieght i have 2 kids and i looked close to if i didnt even poped one.
i dunno do you im too skinny ? I think you are filmy but not too skinny. If you eat full-bodied dont worry around it, you are fine and dont let anyone describe you otherwise.
I'm jealous