Lineage of an illegitimate child

My father is a Muslim from Bangladesh and my mother was a Hindu from India. Now she is a Muslim. They were in a relationship like boyfriend/girlfriend in 1992. That time my mother got pregnant by my father before marriage. Then I was born. My mother escaped with my father and left her own country, family and converted to Islam. Finally they got married in an Islamic way when I was 4 months old. My question is, am I an illegitimate son of my family?