永久居民的未婚21岁以下孩子是F2A类型，有大概两年排期，但是如果孩子移民前你入籍，你可以升级类型，所以现在申请没有害处。
你是母亲还是父亲？如果是父亲，给非婚生子女申请移民，要证明子女是确立婚生地位了，或者要证明你和孩子在21岁之前有真实父亲和子女的关系。母亲就不需要。看I-130 instructions，第7页：
“D. A child born out of wedlock and you are the father: Submit evidence that you and the mother were married
while the child was under 18 years of age, or submit evidence that the child was legitimated under the law of the
child’s residence or domicile, or under the law of your residence or domicile, before the child reached 18 years of
age. If your child was not legitimated before reaching 18 years of age, you must file your petition with copies of
evidence that a bona fide parent-child relationship existed between you and the child before the child reached 21
years of age. This may include evidence that you lived with the child, supported him or her, or otherwise showed
continuing parental interest in the child’s welfare.”
