245i question

okay so all my life I've lived thinking that i was covered under 245i because my moms sister a us citizen filed a 130 petition for her before april 30,2001. after a lot of searching i found out you had to be in the country on or before decemeber 21 2000 to qualify but after also searching it turns out only the principle beneficiary needs to provide presence by that date i am currently covered by daca and still have another two years but my fiancé is expecting our first child and we are getting married oct 3 she is a usc if it turns out i am not covered by 245i what can i do theres no way i can wait out the ban with a child on the way and being the provider

I would consult an attorney specialized in immigration..and also get a second opinion from another.
Some provide free consultations.
Stay away from notaries.