Rich Husband, Don't Run Away

They had known each other for a month, but she was already three months pregnant. She said the child was his, and he said that was enough! The aloof daughter falls in love with the slow-moving male protagonist, but the male protagonist dies unexpectedly on the eve of their wedding. The pregnant female protagonist unexpectedly goes back to the past. When she meets the male protagonist again, how should she explain the child's innocence?