If this was done in times of ignorance and you tried your best to allocate her but failed, this is a great sin. However, if you repented and sought Allah’s forgiveness and did good deeds, Allah will forgive you.

Sir, while growin up, i had a relationship wit a xtain girl. We were young, unguided and full of curiosity. We stayed in different state n she visits. She had a baby girl n disappeared. Havent been able 2 locate ha and it is abt 9 yrs now. So painful dat a non muslim come out of me. Hw do i do?