After Rebirth, I Relied on My Good Pregnancy Physique to Become My Best Friend's Stepmother

In my previous life, my best friend, who was the only daughter of the richest man, simply suspected that I was seducing his father. They ridiculed me for being born low, causing me to lose all my bones in humiliation. Open your eyes again. I got her wish. She fell in love with her richest father who had only one daughter. Rich and handsome. Little did they know that I was born with a good physique to get pregnant, so it was easy for me to have multiple babies. When I give him ten or eight children, will my best friend still be so arrogant? In this life, I must let my best friend be my good daughter and call me "Mom" respectfully.